- Kaziranga Records 30 Raptor and 6 Stork Species in Rapid Bird Survey GS3
- Delhi Bird Atlas — India's Capital Ranks Second in Global Bird Diversity GS3
- Right of Accused to Travel Abroad Cannot Be Seen in Isolation: Supreme Court GS2
- Prime Minister Flags 'National Interest' in Sterlite's 'Green Copper' Project in Tamil Nadu GS3
- Supreme Court Backs Curbs on Online Gaming — 28% GST and State Prohibition Laws Upheld GS2
- The Ordinance Question Before the Supreme Court — Judicial Independence at Stake GS2
- Pyroprocessing — Heat Shows the Way GS3
- Homo Erectus Fossil Yields Molecular Secrets Long Thought Beyond Genetics GS3
- Jai Prakash Narayan Bird Sanctuary (Surha Tal) — India's 100th Ramsar Site GS3
Kaziranga Records 30 Raptor and 6 Stork Species in Rapid Bird Survey
GS Paper 3 — Environment & Ecology | Biodiversity | Wildlife ConservationA rapid bird survey focused on raptors and storks in Kaziranga National Park and Tiger Reserve, Assam, was released on World Environment Day (June 5, 2026), revealing 30 raptor species and 6 stork species. The survey was conducted by a 10-member team between the last week of February and March 2, in collaboration with Gauhati University.
- 217 individual raptors across 30 species recorded — including buzzards, eagles, falcons, owls, and vultures.
- 266 individual storks across 6 species recorded.
- India is home to 112 raptor species; Kaziranga and the adjoining landscape harbour about 50 species.
- India houses 8 of the 20 stork species found in tropical and subtropical regions worldwide; all 8 are found in Assam.
- Most abundant raptor: Himalayan Griffon Vulture (Gyps himalayensis) — 69 individuals sighted.
- Rarest raptors: Booted Eagle and White-tailed Eagle — 1 individual each.
- Most abundant stork: Asian Openbill (Anastomus oscitans) — 92 individuals.
- Rarest stork: Greater Adjutant Stork (Leptoptilos dubius) — 3 individuals.
- Pallas's Fish Eagle (Haliaeetus leucoryphus): Kaziranga has the highest number of breeding sites in the world — 10 active nests recorded by the Wildlife Institute of India (January 2020 survey).
| Zone | Raptor Species | Stork Species |
|---|---|---|
| Eastern Assam Wildlife Division | 21 | 5 |
| Biswanath Wildlife Division | 20 | 6 |
| Nagaon Wildlife Division | 14 | 5 |
- Kaziranga's floodplain grasslands, wetlands, and Himalayan foothills proximity make it a critical habitat for birds of prey.
- The Greater Adjutant Stork is a globally threatened species; Kaziranga and Brahmaputra floodplains are among its last strongholds.
- Survey results provide a baseline for long-term monitoring and inform conservation management within the Tiger Reserve.
- Kaziranga NP & Tiger Reserve — located in Assam; UNESCO World Heritage Site (1985); famous for Indian one-horned rhinoceros and the world's highest density of Royal Bengal Tigers.
- Raptors = Birds of prey; both diurnal (eagles, hawks, falcons) and nocturnal (owls); India has 112 species.
- Greater Adjutant Stork (Leptoptilos dubius) — IUCN: Endangered; one of the world's rarest storks; major breeding colony in Assam.
- Pallas's Fish Eagle (Haliaeetus leucoryphus) — IUCN: Vulnerable; Kaziranga has the world's highest number of breeding sites (10 active nests, per WII 2020).
- Asian Openbill (Anastomus oscitans) — named for the gap between mandibles when beak is closed; predominantly feeds on molluscs and snails.
- Himalayan Griffon Vulture (Gyps himalayensis) — IUCN: Least Concern; one of the largest raptors found in the Himalayas and foothills.
- Wildlife Institute of India (WII) — autonomous institution under MoEFCC; conducts wildlife research, surveys, and capacity building.
- World Environment Day — observed annually on June 5; established by UNEP.
"Flagship species-centric conservation often masks the broader ecological significance of associated biodiversity. In the context of the Kaziranga raptor-stork survey, examine how comprehensive species documentation strengthens wildlife management and conservation policy in India."
With reference to the Greater Adjutant Stork (Leptoptilos dubius), which of the following statements is correct?
- (a) It is classified as Vulnerable on the IUCN Red List and is most commonly found in Kerala's backwaters.
- (b) It is classified as Least Concern and breeds exclusively in Bangladesh.
- (c) It is classified as Endangered on the IUCN Red List and has one of its major breeding colonies in Assam.
- (d) It is the most abundant stork species in Kaziranga according to the 2026 rapid survey.
Delhi Bird Atlas — India's Capital Ranks Second in Global Bird Diversity
GS Paper 3 — Environment & Ecology | Biodiversity | UrbanisationThe Delhi Bird Atlas, released on June 5, 2026 (World Environment Day), claims Delhi ranks "second only to Nairobi among the world's national capitals in bird diversity." The atlas was developed by the Delhi Forest Department, Bird Count India, WWF-India, and partner organisations with participation from citizen volunteers and researchers.
- Delhi Bird List: 471 species (excluding 22 species not re-recorded since 1975).
- First year of survey (starting January 2025): 221 species recorded — 200 in winter, 152 in summer.
- Breakdown: 126 resident species, 81 winter migrants, 14 summer migrants.
- Nearly half (108 species, ~48.87%) are invertebrate feeders.
- 18 endemic bird species recorded.
- Endangered: Egyptian Vulture, Black-bellied Tern.
- Vulnerable: River Tern, Common Pochard.
- Near Threatened: Black-tailed Godwit, Ferruginous Duck, Painted Stork, Black-headed Ibis, Oriental Darter.
- Northern edge of the Aravallis (oldest fold mountains; bring forested Ridge into Delhi).
- Yamuna and Sahibi floodplains — refuge for waterbirds and migrants.
- Proximity to the western Himalayas — facilitates seasonal movement.
- Location near the Central Asian Flyway (CAF) — major bird migration route from the Arctic to the Indian Ocean; Delhi is "almost at the heart" of the CAF.
- Grid-based method: Delhi divided into 6.6 km × 6.6 km grids, subdivided into quadrants and subcells.
- 145 subcells randomly selected; each required four 15-minute checklists, recorded on foot and uploaded to eBird.
- Surveys conducted twice a year (winter and summer); to run for at least two years.
- Atlas covers 11% of Delhi's area in its sampling design.
- Delhi Bird Atlas (2026) — developed by Delhi Forest Department, Bird Count India, and WWF-India; Delhi ranks 2nd globally among national capitals in bird diversity (after Nairobi).
- Central Asian Flyway (CAF) — one of the world's major bird migration routes; stretches from the Arctic to the Indian Ocean; Delhi lies near its heart.
- eBird — global online database of bird observations; managed by Cornell Lab of Ornithology; used for citizen science bird surveys.
- Aravallis — oldest fold mountains in India (Precambrian); extend from Gujarat through Rajasthan to Delhi-Haryana; the Delhi Ridge is their northern extension.
- Egyptian Vulture (Neophron percnopterus) — IUCN: Endangered; smallest of the Old World vultures; found in Delhi.
- Common Pochard (Aythya ferina) — IUCN: Vulnerable; diving duck; winter migrant to India.
- Endemic species = Species found exclusively in one specific geographic region and nowhere else in the world.
- Winter migrants = Birds that breed in higher latitudes (Siberia, Central Asia) and migrate to India for winter; arrive September–November, depart February–March.
"Urban biodiversity is frequently treated as a contradiction in terms. The Delhi Bird Atlas challenges this assumption. Examine the ecological factors that sustain high bird diversity in Delhi and discuss the policy implications for urban biodiversity conservation in Indian megacities."
With reference to the Central Asian Flyway (CAF), consider the following statements:
1. It is a bird migration route stretching from the Arctic to the Indian Ocean.
2. Delhi lies near the eastern edge of the Central Asian Flyway, far from its heart.
3. The Yamuna and Sahibi floodplains in Delhi provide refuge for migratory birds arriving via the CAF.
Which of the statements given above is/are correct?
- (a) 1 only
- (b) 1 and 3 only
- (c) 2 and 3 only
- (d) 1, 2, and 3
Right of Accused to Travel Abroad Cannot Be Seen in Isolation: Supreme Court
GS Paper 2 — Judiciary | Fundamental Rights | Criminal Justice | Article 21A Division Bench of the Supreme Court comprising Justices Dipankar Datta and Satish Chandra Sharma set aside a Telangana High Court order that had permitted an accused in a criminal case to travel to the US for medical treatment. The Court held that the fundamental right to travel abroad under Article 21 cannot be viewed in isolation — it must be balanced against the victim's right to a speedy trial and the larger public interest in effective criminal justice administration.
- A complaint was lodged in 2014 about the suspicious death of the complainant's father; an FIR was filed against the businessman for criminal conspiracy and abetment of suicide under the Indian Penal Code.
- The trial has not commenced even after ten years.
- In 2016, the accused obtained an order suspending the lookout circular (LOC) and left India in 2017; he returned only in April 2025 when arrested at Rajiv Gandhi International Airport, Hyderabad.
- He had been filing successive petitions, securing interim protection, and withdrawing them before final adjudication while abroad.
- Article 21 is not absolute: The right to travel abroad is part of the right to life and personal liberty under Article 21, but it must be balanced against competing rights and public interests.
- Balancing test: The Court articulated a balance between individual liberty of the accused on one hand, and the victim's right to a speedy trial and societal interest in effective administration of criminal justice on the other.
- High Court was "indulgent": The SC held the High Court failed to exercise judicial restraint and was "indulgent rather than judicially restrained."
- Accused cannot exploit successive petitions to secure interim relief while abandoning proceedings before final adjudication.
- The judgment references the highly publicised case of veteran politician Narayan Dutt Tiwari, compelled to take a DNA test that established him as the biological father of Rohit Shekhar.
- The Delhi HC and SC balanced privacy rights of the alleged father against the child's right to establish paternity.
- Principle: Rights under Article 21 — including privacy — are not absolute and must be balanced against other competing rights.
- Reinforces that procedural exploitation of the court process — through serial petitions followed by withdrawal — does not create entitlement to fundamental rights protection.
- Strengthens the jurisprudence that delay in trial caused by the accused cannot be converted into a ground for claiming further rights.
- Lookout Circulars (LOCs) issued by MHA/police have a legitimate preventive role in ensuring accused persons do not flee jurisdiction.
- Article 21 — Right to life and personal liberty; includes right to travel abroad, right to speedy trial, right to privacy.
- Lookout Circular (LOC) — Administrative tool issued by MHA or police directing immigration authorities to prevent a person from leaving India; used in criminal/economic offence cases.
- Speedy Trial — Held to be an integral part of Article 21 since Hussainara Khatoon v. State of Bihar (1979).
- Abetment of suicide — Offence under IPC Section 306 (now BNSS); punishable with imprisonment up to 10 years.
- Criminal conspiracy — IPC Section 120-B (now BNSS); two or more persons agreeing to commit an illegal act.
- Balancing of rights doctrine — Fundamental rights are not absolute; courts balance competing rights (privacy vs. paternity, liberty vs. speedy trial) — reaffirmed in multiple SC judgments.
- De facto doctrine — Acts of a person holding office, even if appointment is later found invalid, remain valid to protect public interest (relevant in context of judicial appointments).
"Fundamental rights under Article 21 are not absolute and must be balanced against the rights of victims and the larger public interest in criminal justice. Critically examine this principle with reference to recent Supreme Court jurisprudence."
With reference to Lookout Circulars (LOCs) in India, which of the following statements is correct?
- (a) LOCs can be issued only by a competent court of law and have no administrative origin.
- (b) LOCs are issued under the provisions of the Bharatiya Nagarik Suraksha Sanhita (BNSS), 2023.
- (c) LOCs are administrative tools issued by the Ministry of Home Affairs or police authorities to prevent an individual from leaving India, typically used in criminal or economic offence cases.
- (d) A LOC once issued cannot be suspended or modified by any court.
Prime Minister Flags 'National Interest' in Sterlite's 'Green Copper' Project in Tamil Nadu
GS Paper 3 — Infrastructure | Economy | Environment | GS Paper 2 — Governance | JudiciaryPrime Minister Narendra Modi invoked the closure of the Sterlite Copper plant in Thoothukudi, Tamil Nadu, calling it against national interest and appealing to courts to find solutions that place national interest foremost. The plant, operated by Vedanta Limited, has been shut since 2018 following a police firing incident that killed 13 protesters. Vedanta has since proposed a revamped "green copper" process and applied to the Tamil Nadu Pollution Control Board (TNPCB) for consent to operate.
| Year | Event |
|---|---|
| Mid-1990s | Sterlite Copper plant begins operations in Thoothukudi; capacity: 4 lakh tonnes of refined copper annually. |
| 2013 | Sulphur dioxide (SO₂) gas leak triggers protests and regulatory scrutiny. |
| 2018 | Police fire on protesters on May 22; 13 dead, ~100 injured; TNPCB withdraws consent; State government orders closure. |
| Post-2018 | Madras HC upholds closure; Supreme Court endorses the ruling. |
| Jan 2026 | Vedanta applies to TNPCB for Consent To Operate the proposed "green copper" plant. |
| Jan 27, 2026 | TNPCB rejects application; Sterlite approaches Madras HC alleging arbitrary rejection. |
| May 10, 2026 | PM Modi publicly laments closure; appeals to courts to prioritise national interest. |
- India became a net importer of refined copper after Sterlite's closure; importing 4 lakh tonnes entails a foreign exchange outgo of approximately $3.5 billion.
- Copper is increasingly a strategic metal for electric vehicles (EVs), renewable energy systems, and power transmission infrastructure.
- The smelter supplied ~350 downstream firms, many in the MSME sector; its closure disrupted supply chains and pushed up prices.
- The plant's closure also affected operations at Thoothukudi Port, which handled copper concentrate imports.
- Vedanta's proposed revamped process includes: cleaner technology, renewable energy use, improved SO₂ emission controls, greater water recycling, use of desalinated seawater, and shutdown of the phosphoric acid unit that generated gypsum waste.
- Critics and legal experts caution that courts must assess whether this represents genuine technological transformation or "cosmetic changes" to the old project.
- Senior Advocate Sanjay Hegde (Supreme Court) notes that while earlier closure orders acquired judicial finality, they do not bind Sterlite from trying with a genuinely different process.
- The PM's remarks that courts should consider national interest raise questions about separation of powers and the independence of regulatory and judicial bodies.
- The core tension: whether national economic interest can override environmental concerns and the rights of affected communities.
- Community trust deficit: The 2018 police firing and the 2013 gas leak have created deep and lasting distrust among local communities and fisherfolk.
- Environmental track record: Court judgments documented repeated violations including groundwater contamination, hazardous solid waste disposal, and air pollution — not just the 2013 leak.
- Executive influence on judiciary: PM's public appeal to courts to decide in favour of a private company's restart raises concerns about judicial independence.
- Sterlite Copper — owned by Vedanta Limited; located in Thoothukudi (Tuticorin), Tamil Nadu; capacity: 4 lakh tonnes/year of refined copper.
- TNPCB = Tamil Nadu Pollution Control Board — State regulatory body for environmental consents under the Environment Protection Act, 1986 and Water/Air Acts.
- Copper — strategic metal for EVs, renewable energy, and power transmission; India is currently a net importer of refined copper (~$3.5 billion annual foreign exchange outgo).
- SO₂ (Sulphur Dioxide) — toxic gas; emitted from copper smelting; causes acid rain and respiratory disease; key pollutant in the Sterlite controversy.
- Consent To Operate (CTO) — mandatory environmental clearance from State Pollution Control Boards under the Water Act, 1974 and Air Act, 1981 for industrial units.
- Thoothukudi (Tuticorin) — major port city in Tamil Nadu; home to Thoothukudi Port (also known as V.O. Chidambaranar Port).
- Phosphoric acid plant — generates gypsum waste as a by-product; was a major environmental concern in the Sterlite case.
- Separation of powers — constitutional principle that the legislature, executive, and judiciary function independently; executive pressure on judicial outcomes violates this doctrine.
"The Sterlite copper controversy exemplifies the inherent tension between industrial national interest and community environmental rights in India. Critically examine the legal, environmental, and governance dimensions of this controversy and suggest a framework for equitable resolution."
Consider the following statements about copper as a strategic metal in India:
1. After the closure of the Sterlite plant, India became a net importer of refined copper.
2. Copper is a critical input for electric vehicles, renewable energy systems, and power transmission infrastructure.
3. India's copper ore reserves are among the largest in the world.
Which of the statements given above is/are correct?
- (a) 1 and 2 only
- (b) 2 and 3 only
- (c) 1 and 3 only
- (d) 1, 2, and 3
Supreme Court Backs Curbs on Online Gaming — 28% GST and State Prohibition Laws Upheld
GS Paper 2 — Judiciary | Federalism | Legislative Competence | GS Paper 3 — Economy | TaxationOn May 27, 2026, a Supreme Court Bench of Justices J.B. Pardiwala and R. Mahadevan delivered two landmark rulings: (1) upheld the constitutional validity of the Centre's retrospective 28% GST levy on online gaming companies, and (2) affirmed the validity of State laws prohibiting real-money gaming platforms.
- In 2021, Tamil Nadu and Karnataka enacted laws criminalising online betting and wagering.
- The Madras and Karnataka High Courts struck down these laws; State governments appealed to the SC.
- States argued: betting and gambling fall under their legislative competence under Entry 34, List II (State List) of the Seventh Schedule.
- The GST Council (August 2023) clarified that all online games involving bets/wagers attract 28% GST on the full value staked, regardless of whether skill or chance-based.
- The Directorate General of GST Intelligence (DGGI) issued demand notices — including for the pre-amendment period (retrospective) — running into several lakh crore rupees.
- Gaming companies challenged before the Bombay and Karnataka High Courts, which quashed the tax proceedings; Union government appealed to SC.
- The skill vs. chance distinction becomes irrelevant for GST once money is staked on an uncertain outcome.
- Online gaming platforms involving money stakes are structured around wagering, not mere skill competition.
- The CGST Act, 2017 expressly includes actionable claims relating to lottery, betting, and gambling within the tax net.
- 2023 amendments were not a fresh levy but merely "clarified and standardised" existing law — hence capable of retrospective operation.
- Betting and gambling are res extra commercium (outside legitimate commerce) and beyond ordinary trade protection.
- Even skill-based games become subject to wagering regulation once money stakes are introduced.
- States can draw legislative support from both Entry 34 (betting and gambling) and Entry 1 (public order) of the State List.
- Widespread smartphones and digital payment gateways have turned mobile phones into virtual "gambling houses."
- Industry standstill: The Promotion and Regulation of Online Gaming Act, 2025 already prohibited real-money gaming (with exceptions for e-sports, educational games, social gaming); GST ruling compounds the blow.
- GST recovery doubtful: Many companies have shifted operations abroad or pivoted; demands far exceed revenues ever earned; insolvency proceedings likely.
- Legislative competence question: SC held betting/gambling are State subjects under Entry 34; this may undermine Parliament's claim to legislate under Entry 52 (Union List) — the basis of the 2025 Act.
- Entry 34, List II (State List) — "Betting and gambling" — States have exclusive power to legislate on this subject under the Seventh Schedule.
- Entry 52, List I (Union List) — Regulation of industries where Parliament declares such regulation expedient in the public interest; invoked by Centre for the 2025 Online Gaming Act.
- Res extra commercium — Latin: "outside legitimate commerce" — activities the State can prohibit entirely without infringing trade/business rights.
- GST Council — Constitutional body under Article 279A; chaired by Union Finance Minister; decides GST rates and policies.
- DGGI = Directorate General of GST Intelligence — enforcement arm under CBIC (Central Board of Indirect Taxes and Customs); investigates GST evasion.
- 28% GST = Highest GST slab; applies to luxury goods, sin goods, and — per the 2023 GST Council decision — all online games involving money stakes, on the full value staked.
- Actionable claim — A claim that can be enforced by legal action; CGST Act explicitly includes lottery, betting, and gambling actionable claims in the tax net.
- Seventh Schedule — Part of the Indian Constitution (Articles 245–246); contains three lists dividing legislative powers between Union and States.
"The Supreme Court's rulings on online gaming taxation and State prohibition laws raise fundamental questions about federalism, the limits of trade protection, and the regulation of digital platforms. Critically examine these rulings and their implications for India's digital economy."
With reference to the constitutional provisions governing betting and gambling in India, which of the following statements is correct?
- (a) Betting and gambling are a Concurrent List subject, allowing both Parliament and State Legislatures to legislate on it.
- (b) Parliament has exclusive power to regulate betting and gambling under Entry 52 of the Union List.
- (c) Betting and gambling are a State List subject under Entry 34 of List II, giving State Legislatures primary competence to regulate them.
- (d) There is no specific entry in the Seventh Schedule for betting and gambling; such regulation falls under residuary powers of the Union.
The Ordinance Question Before the Supreme Court — Judicial Independence at Stake
GS Paper 2 — Constitution | Judiciary | Separation of Powers | Collegium SystemFive new judges were sworn in to the Supreme Court after a Presidential Ordinance (promulgated May 16, 2026) raised the sanctioned strength from 34 to 38. While two appointees filled existing lawful vacancies, three were elevated to newly created Ordinance-based posts. Legal scholars and constitutional experts have raised concerns about judicial independence, security of tenure, and the appearance of judicial detachment from the executive.
- Article 124(1) — leaves the number of Supreme Court judges to what Parliament may prescribe.
- Article 123 — Presidential Ordinance-making power; carries the force of an Act of Parliament during its life; but can be withdrawn by the President at any time, disapproved by both Houses, or lapses six weeks after Parliament reassembles.
- Article 124(2) — Supreme Court judges appointed by the President in consultation with such judges as the President may deem necessary (operates via Collegium in practice).
- A court that owes three chairs to a six-week renewable Ordinance holds those seats at the executive's sufferance — compromising the appearance of independence.
- Under Article 123, the Ordinance lapses six weeks after Parliament reassembles unless replaced by legislation.
- In any case before such a court touching the Union government, the party whose parliamentary majority must regularise the judges' seats may appear as a litigant — raising conflict-of-interest optics.
- Justice Pankaj Mithal retires on June 16; Justice J.K. Maheshwari retires on June 28 — reopening two lawful seats, into which two of the three Ordinance-judges can move.
- Justice V. Mohana (the only appointment from the bar; junior-most) sits on an Ordinance post; she can reach a lawful seat only when Justice Sanjay Karol retires on August 22 — almost coinciding with the Ordinance's likely lapse.
- The Collegium's calculated bet: the Parliament will pass the replacement Bill before August 22; and even if slightly delayed, Justice Karol's vacancy absorbs her.
- D.C. Wadhwa v. State of Bihar (1986) — SC held that governance by re-promulgated ordinance is a fraud on the Constitution.
- Krishna Kumar Singh v. State of Bihar (2017) — 7-judge Bench ruled against using ordinance-making power as a parallel source of legislation.
- Supreme Court Advocates-on-Record Association v. Union of India (2015) — SC struck down the National Judicial Appointments Commission (NJAC) (99th Constitutional Amendment), upholding judicial primacy in appointments.
- Gokaraju Rangaraju v. State of Andhra Pradesh (1981) — established the de facto doctrine: judgments of a judge whose appointment is later found defective remain valid in the interest of justice.
- If Parliament passes the Bill: the anomaly closes and all three Ordinance-judges get secure, lawful tenures.
- If Parliament does not replace the Ordinance: sanctioned strength reverts to 34; the executive cannot re-promulgate (Wadhwa); whether a judge appointed to an Ordinance-created post can be removed when the post lapses remains constitutionally untested.
- The deeper concern: "The court has staked its independence and its judges' security of tenure on the goodwill of the executive and Parliament."
- Article 124(1) — SC shall consist of CJI and such number of other judges as Parliament may prescribe by law; currently prescribed at 34 (now raised to 38 by Ordinance).
- Article 123 — Presidential Ordinance power; Ordinance has force of an Act; lapses 6 weeks after Parliament reassembles unless replaced by legislation; President can withdraw at any time.
- Article 124(2) — Appointment of SC judges by President; operates through the Collegium system in practice (CJI + 4 senior-most judges).
- NJAC (99th Amendment, 2014) — National Judicial Appointments Commission; struck down by SC in 2015 (SCAORA v. Union of India) as violating judicial independence.
- De facto doctrine — Established in Gokaraju Rangaraju (1981); acts of a defacto judge are valid; protects judgments from retrospective challenge.
- D.C. Wadhwa v. State of Bihar (1986) — Re-promulgation of ordinances = fraud on the Constitution.
- Security of tenure — SC judges hold office until age 65; removable only by impeachment (Article 124(4)) by special majority in both Houses; essential to judicial independence.
- Justice V. Mohana — Only the second woman elevated directly from the Bar to the Supreme Court; sits on an Ordinance-created post.
"The use of a Presidential Ordinance to create additional Supreme Court judge posts raises fundamental questions about the independence of the judiciary and the security of judicial tenure. Critically examine the constitutional and institutional concerns arising from this development."
Consider the following statements about a Presidential Ordinance under Article 123 of the Indian Constitution:
1. A Presidential Ordinance has the same force and effect as an Act of Parliament during its operation.
2. An Ordinance lapses automatically six weeks after both Houses of Parliament are summoned to reassemble, unless approved.
3. The President may withdraw an Ordinance at any time.
4. A re-promulgated Ordinance (issued repeatedly to avoid parliamentary approval) has been held constitutional by the Supreme Court.
Which of the statements given above are correct?
- (a) 1 and 2 only
- (b) 1, 2, and 3 only
- (c) 2, 3, and 4 only
- (d) 1, 2, 3, and 4
Pyroprocessing — Heat Shows the Way
GS Paper 3 — Science & Technology | Nuclear Energy | Manufacturing | MetallurgyThe concept of pyroprocessing has come into focus in discussions around advanced nuclear fuel cycles, cement manufacturing, and metallurgy. A closer look at pyroprocessing — its definitions, sectors of use, and nuclear applications — is relevant for both Prelims and Mains given India's expanding nuclear energy ambitions under the three-stage nuclear programme.
Pyroprocessing is a method of changing a solid material — physically or chemically — using high temperatures. It is a dry process (uses no water as a medium) and is highly energy-intensive. It is distinct from hydroprocessing (which uses water or solvents).
| Sector | Process | Key Detail |
|---|---|---|
| Cement-making | Rotary kiln heating; clinker formation | Limestone + clay + iron heated; CO₂ driven off at ~900°C; partial melt forms clinker at ~1,450°C; clinker ground to produce cement. |
| Metallurgy | Roasting, smelting, calcining | Roasting = heating sulphide ores in air to produce metal oxides; Smelting = melting ore to separate metal from slag; Calcining = heating limestone to yield lime. |
| Nuclear (spent fuel reprocessing) | Electrochemical separation in molten salt bath | Used nuclear fuel dissolved in LiCl-KCl salt bath at 500°C+; electric current separates elements by electrochemical properties; used in advanced fast reactor programmes. |
- Developed in the 1980s–1990s for reprocessing spent nuclear fuel.
- Spent fuel is broken into pieces and placed in a salt bath — typically a mixture of lithium chloride (LiCl) and potassium chloride (KCl) — at 500°C or above.
- An electric current is passed through; elements separate according to their electrochemical properties.
- Elements of interest (e.g., plutonium, uranium, minor actinides) recovered in separate streams.
- Being studied and used in Japan, South Korea, and the US as part of advanced fast reactor programmes.
- Key advantage over conventional PUREX (wet) reprocessing: does not use organic solvents; suited for metal fuels in fast reactors.
- India's three-stage nuclear programme (designed by Homi Bhabha) involves fast breeder reactors (Stage 2) that use plutonium fuel — making spent fuel reprocessing critical.
- IGCAR (Indira Gandhi Centre for Atomic Research), Kalpakkam, is India's centre for fast reactor and advanced nuclear fuel cycle research.
- India's first commercial Fast Breeder Reactor (FBR) is being built at Kalpakkam and is nearing commissioning.
- Pyroprocessing = Physical/chemical transformation of solid material using high temperature; a dry process (no water medium); energy-intensive; used in cement, metallurgy, and nuclear sectors.
- Clinker = Marble-sized nodules formed by partial melting of raw cement mix at ~1,450°C in a rotary kiln; ground to produce cement.
- Roasting (metallurgy) = Heating sulphide ores in air to convert them to metal oxides. Smelting = Melting ore to separate metal from slag (waste). Calcining = Heating limestone to yield lime.
- Spent nuclear fuel = Used reactor fuel containing fission products and actinides; highly radioactive; must be reprocessed or stored safely.
- PUREX process = Plutonium Uranium Reduction Extraction — conventional wet (aqueous solvent-based) reprocessing method; pyroprocessing is the dry alternative.
- India's Three-Stage Nuclear Programme: Stage 1 = PHWRs (natural uranium); Stage 2 = Fast Breeder Reactors (plutonium + uranium); Stage 3 = Thorium-U-233 cycle. Designed by Homi J. Bhabha.
- IGCAR = Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu — under DAE; centre for fast reactor research and advanced nuclear fuel cycle work.
- Molten salt (LiCl-KCl) = The medium used in nuclear pyroprocessing; allows electrochemical separation of elements at high temperature.
"Pyroprocessing of spent nuclear fuel is a critical technology for closing India's nuclear fuel cycle. Explain the process, its advantages over conventional reprocessing, and its significance for India's three-stage nuclear programme."
Consider the following statements about pyroprocessing:
1. Pyroprocessing is a wet chemical process that uses solvents to separate elements from spent nuclear fuel.
2. In cement-making, pyroprocessing involves heating raw materials to approximately 1,450°C to form clinker.
3. In nuclear fuel reprocessing, pyroprocessing uses a molten salt bath and an electric current to separate elements electrochemically.
Which of the statements given above is/are correct?
- (a) 1 and 2 only
- (b) 2 and 3 only
- (c) 1 and 3 only
- (d) 1, 2, and 3
Homo Erectus Fossil Yields Molecular Secrets Long Thought Beyond Genetics
GS Paper 3 — Science & Technology | Biotechnology | Prehistoric LifeA study published in Nature has provided the first-ever molecular sequences from Homo erectus fossils from China, using a novel technique of extracting proteins from tooth enamel via acid etching — a major breakthrough in ancient biomolecular science. The findings suggest Homo erectus may have interbred with Denisovans in East Asia.
- DNA begins breaking down immediately after death — cut by enzymes, degraded by microbes, damaged by water, oxygen, UV, and temperature fluctuations.
- Usable ancient DNA requires cold, dry, stable environments — permafrost, frozen sediments, or deep caves. Such conditions are rare.
- Homo erectus — estimated to have originated over 2 million years ago and spread across Africa, Europe, and Asia — has been beyond the reach of genetics until now.
- Researchers extracted proteins preserved within the enamel of six Homo erectus teeth dated to ~4,00,000 years ago from China.
- Proteins are products of DNA — their sequences reveal portions of the underlying genetic information.
- Acid etching technique: A small area of enamel is briefly exposed to dilute acid, which dissolves microscopic amounts of enamel and releases trapped proteins — leaving the fossil largely intact.
- Key advantage over grinding: museum curators reluctant to permit grinding; acid etching is minimally invasive.
- Tooth enamel is a highly mineralised tissue — it can trap and preserve proteins for hundreds of thousands of years.
- Finding 1: All six individuals had a protein variant never found before in any known species of the genus Homo — suggesting a unique genetic lineage.
- Finding 2: They carried another variant present in Denisovans — suggesting that populations related to these Chinese Homo erectus may have interbred with Denisovans in East Asia.
- It was already known that the Denisovan genome contains DNA from a much older hominin lineage; this study points to Homo erectus as a possible candidate — but is not conclusive.
| Discovery | Year | Key Finding |
|---|---|---|
| Neanderthal genome | 2010 | Most living humans carry 1–2% Neanderthal DNA; Africans carry 0.3–0.5%. |
| Denisovan genome | 2012 | Populations in Oceania and SE Asia carry 3–6% Denisovan DNA. |
| Homo erectus enamel proteins | 2026 | First molecular data from H. erectus; possible interbreeding with Denisovans suggested. |
- Homo erectus — extinct hominin; originated >2 million years ago; first human relative to spread widely across Africa, Europe, and Asia; not a direct ancestor of modern Homo sapiens (though related).
- Denisovans — extinct human lineage known from DNA; closely related to Neanderthals; inhabited parts of Asia; modern Oceanic and SE Asian populations carry 3–6% Denisovan DNA.
- Neanderthals — closest extinct relatives of modern humans; genome published 2010; most living humans carry 1–2% Neanderthal DNA.
- Ancient DNA (aDNA) — DNA recovered from ancient specimens; degrades rapidly; requires cold, stable environments; studied via paleogenomics.
- Enamel proteomics — extraction and analysis of ancient proteins from tooth enamel; newer alternative to aDNA; enamel preserves proteins for hundreds of thousands of years.
- Acid etching — technique where dilute acid briefly dissolves microscopic enamel surface, releasing trapped proteins without grinding the fossil; minimally invasive.
- Human Genome Project — completed first high-quality human genome sequence in 2003; joint effort of 20 institutions across 6 countries.
- Radiometric dating — technique using decay of radioactive isotopes to determine the age of fossils and rocks; includes radiocarbon dating (C-14), uranium-lead dating, etc.
"Recent advances in ancient biomolecular science are rewriting the history of human evolution. Examine the significance of the Homo erectus enamel protein study and discuss what emerging paleogenomic evidence tells us about interbreeding among ancient human species."
Consider the following statements about ancient human species and modern human DNA:
1. Most living humans outside Africa carry approximately 1–2% Neanderthal DNA in their genomes.
2. Denisovan DNA is found at its highest concentrations in populations of Oceania and parts of Southeast Asia, reaching 3–6%.
3. The Neanderthal genome was sequenced before the Denisovan genome.
4. Homo erectus DNA has been fully sequenced from fossils recovered in permafrost conditions.
Which of the statements given above are correct?
- (a) 1, 2, and 4 only
- (b) 1, 2, and 3 only
- (c) 2 and 4 only
- (d) 1, 2, 3, and 4
Jai Prakash Narayan Bird Sanctuary (Surha Tal) — India's 100th Ramsar Site
GS Paper 3 — Environment & Ecology | Biodiversity | International Conventions | Government SchemesOn World Environment Day (June 5, 2026), the Jai Prakash Narayan Bird Sanctuary (Surha Tal) in Ballia district, Uttar Pradesh, was designated as India's 100th Ramsar site under the Ramsar Convention on Wetlands. Prime Minister Modi lauded this as a reflection of India's commitment to wetland conservation.
- India now holds the highest number of Ramsar Sites in Asia.
- India ranks 3rd globally in Ramsar sites — trailing only United Kingdom (176 sites) and Mexico (144 sites).
- Surha Tal is the 13th Ramsar site in Uttar Pradesh.
- Earlier in 2026, Shekha Jheel Bird Sanctuary (Aligarh) and Patna Bird Sanctuary (Etah) were also designated Ramsar sites — both in UP.
| Feature | Detail |
|---|---|
| Location | Ballia district, Uttar Pradesh; middle stretch of the Ganga River basin |
| Type | Natural oxbow lake formed by the meandering course of the Ganga River |
| Declaration | Declared Bird Sanctuary by UP government in 1991 |
| Water Source | Freshwater inflow through three primary channels; expands over floodplains during monsoon |
| Flyway | Strictly under the Central Asian Flyway; critical stopover for Siberian and Central Asian migrants |
- Avifauna: Migratory birds from Siberia and Central Asia including the Vulnerable Common Pochard, Indian River Tern, Sarus Cranes, and Bar-headed Geese.
- Aquatic life: Over 221 plant species and 66 fish species including the Vulnerable Wallago attu and Bagarius bagarius.
- Mammals: The Vulnerable Fishing Cat (Prionailurus viverrinus) uses the site as a prime feeding and breeding ground.
- Cultural significance: Surha Taal is associated with local historical, religious, and traditional beliefs — an important socio-ecological landscape in eastern UP.
- The Ramsar Convention (Convention on Wetlands) was signed in Ramsar, Iran, in 1971; entered into force in 1975.
- India acceded to the Convention in 1982.
- Wetlands (as per Ramsar): Areas of marsh, fen, peatland, or water — natural or artificial, permanent or temporary — containing static or flowing, fresh, brackish, or saline water; includes shallow marine areas up to 6 metres deep at low tide.
- India's definition (Wetlands Conservation & Management Rules, 2017) excludes: river channels, paddy fields, drinking water tanks, and water bodies created for aquaculture, salt production, recreation, or irrigation.
- The Montreux Record — a register within the Ramsar framework of Ramsar Sites where changes in ecological character have occurred or are likely to occur.
- Wetlands (Conservation and Management) Rules, 2017 — primary regulatory framework under the Environment Protection Act, 1986; administered by MoEFCC.
- Amrit Dharohar Scheme (2023–2026) — promoted unique conservation values of Ramsar sites and community involvement; run through State Wetland Authorities.
- METT (Management Effectiveness Tracking Tool) — used to evaluate the management effectiveness of Ramsar sites in India.
- Ramsar Convention — signed 1971, Ramsar, Iran; entered into force 1975; India acceded 1982; focuses on conservation and wise use of wetlands.
- India's Ramsar tally — 100 sites; highest in Asia; 3rd globally (after UK: 176, Mexico: 144).
- Surha Tal (Jai Prakash Narayan Bird Sanctuary) — oxbow lake, Ganga basin, Ballia, UP; 13th Ramsar site in UP; declared sanctuary in 1991.
- Oxbow lake = Crescent-shaped lake formed when a meander of a river is cut off from the main channel; the lake takes an ox-bow (U-shape).
- Central Asian Flyway — bird migration route; Arctic to Indian Ocean; Surha Tal is strictly under this flyway.
- Fishing Cat (Prionailurus viverrinus) — IUCN: Vulnerable; wetland-dependent wild cat; State animal of West Bengal; found in India, Sri Lanka, SE Asia.
- Sarus Crane (Antigone antigone) — IUCN: Vulnerable; world's tallest flying bird; State bird of Uttar Pradesh.
- Montreux Record — subset of Ramsar sites where changes in ecological character have occurred or are threatened; India has 2 sites on Montreux Record: Keoladeo NP and Loktak Lake.
- Wetlands Rules, 2017 — under MoEFCC; administered via State Wetland Authorities; excludes paddy fields, river channels, and irrigation tanks from definition.
- Amrit Dharohar Scheme — launched Budget 2023-24; promotes conservation of Ramsar sites through community participation and eco-tourism; implemented through State Wetland Authorities.
"Achieving 100 Ramsar sites is a landmark, but wetland conservation in India requires more than designations. Critically examine the threats to India's wetlands and evaluate the effectiveness of the existing regulatory and policy framework in protecting them."
Consider the following statements about the Ramsar Convention and India's wetlands:
1. The Ramsar Convention was signed in 1971 and India acceded to it in 1982.
2. India ranks first globally in the number of Ramsar sites.
3. The Montreux Record is a list of Ramsar sites where changes in ecological character have occurred or are likely to occur.
4. Under India's Wetlands (Conservation and Management) Rules, 2017, paddy fields are included within the definition of wetlands.
Which of the statements given above are correct?
- (a) 1 and 2 only
- (b) 1 and 3 only
- (c) 2 and 3 only
- (d) 1, 3, and 4 only


