GS Paper III · Agriculture · Science & Technology · GM Crops
🍆 Bt Brinjal — India's Most Controversial GM Food Crop
What is Bt Brinjal · How cry1Ac Works · Ti Plasmid Method · GEAC 2009 Approval · Jairam Ramesh Moratorium 2010 · Bangladesh Success · Janak & BSS-793 Field Trials · Advantages vs Concerns · PYQs & MCQs
🍆
What is Bt Brinjal? — The "First GM Food Crop" Controversy
Definition · Who Made It · Why It Matters
📖 Definition
Bt Brinjal is a transgenic (genetically modified) variety of brinjal (eggplant/Solanum melongena) created by inserting the cry1Ac gene from the soil bacterium Bacillus thuringiensis (Bt) into brinjal plants using Agrobacterium-mediated recombinant DNA technology. The cry1Ac gene produces a protein that is toxic to the Fruit and Shoot Borer (FSB) pest — brinjal's most damaging enemy.
🧠 Simple Analogy — For Non-Biology Students
Imagine brinjal is a house, and the Fruit & Shoot Borer pest is a burglar. Normal brinjal has no lock — the burglar walks right in and destroys the crop. Bt Brinjal is like installing an automated alarm system (the Cry1Ac protein) inside the plant itself — when the pest tries to eat in, the alarm goes off and kills the intruder, without the farmer needing to spray chemicals.
🏭 Who Developed Bt Brinjal?
Developer: Mahyco-Monsanto Biotech (MMB) — a joint venture between Maharashtra Hybrid Seed Company (Mahyco) and US giant Monsanto
Support: USAID, Cornell University, Bangladesh Agricultural Research Institute (BARI), and state agricultural universities in India
Technology transfer: Mahyco transferred the event (EE-1) to public sector seed companies in Bangladesh and India for non-commercial development
Controversy: In 2013, Mahyco was accused of bio-piracy — accessing brinjal varieties from Karnataka and Tamil Nadu without consent from the National Biodiversity Authority (NBA) and state biodiversity boards
Support: USAID, Cornell University, Bangladesh Agricultural Research Institute (BARI), and state agricultural universities in India
Technology transfer: Mahyco transferred the event (EE-1) to public sector seed companies in Bangladesh and India for non-commercial development
Controversy: In 2013, Mahyco was accused of bio-piracy — accessing brinjal varieties from Karnataka and Tamil Nadu without consent from the National Biodiversity Authority (NBA) and state biodiversity boards
🐛 The Pest Problem — Why FSB is Devastating
Pest: Fruit and Shoot Borer (FSB) — Leucinodes orbonalis
Damage: FSB larvae bore into shoots and fruits, causing 50–70% crop loss in severe cases. Forces farmers to spray pesticides 25–80 times per crop season — some of the heaviest pesticide use in Indian agriculture
Scale: ~5.5 lakh hectares of brinjal grown in India. India is the world's second-largest brinjal producer after China
Farmers affected: Over 14 lakh small and marginal farmers grow brinjal — a critical cash crop
Damage: FSB larvae bore into shoots and fruits, causing 50–70% crop loss in severe cases. Forces farmers to spray pesticides 25–80 times per crop season — some of the heaviest pesticide use in Indian agriculture
Scale: ~5.5 lakh hectares of brinjal grown in India. India is the world's second-largest brinjal producer after China
Farmers affected: Over 14 lakh small and marginal farmers grow brinjal — a critical cash crop
🇮🇳 India's Significance
Brinjal is not just any vegetable in India — it is a poor farmer's crop, grown by over 1.4 million small and marginal farmers in virtually every state. Major producing states: West Bengal, Odisha, Bihar, Gujarat. It is rich in vitamins, minerals (especially iron), and fibre. Bt Brinjal was proposed as India's first GM food crop — making it uniquely controversial at the intersection of food safety, farmer welfare, and environmental regulation.
📋 Current Status of Bt Brinjal in India (as of 2025)
GEAC approved environmental release: 2009 →
Moratorium imposed by Environment Minister Jairam Ramesh: February 2010 →
Field trials resumed for new varieties (Janak & BSS-793): 2020–23 →
Still under moratorium for commercial cultivation — 2025
⚙
How Bt Brinjal is Made & How it Works High Yield
Ti Plasmid · cry1Ac Gene · Gut Lysis Mechanism
🏭 Step A — How Bt Brinjal is Created (Ti Plasmid Method)
Ti Plasmid Method: Agrobacterium tumefaciens naturally infects plants via its Ti (Tumour-inducing) plasmid. Scientists exploit this: the T-DNA in the Ti plasmid is replaced with the desired gene (cry1Ac). The bacterium then infects the plant cell and integrates T-DNA (now carrying cry1Ac) into the plant chromosome — creating a transgenic plant where every cell carries the cry1Ac gene. In nature, this causes crown gall disease; in the lab, the disease genes are removed and only the useful gene is transferred.
1
Isolate cry1Ac gene
Cut cry1Ac gene from Bacillus thuringiensis bacteria using restriction enzymes
2
Prepare Ti Plasmid
Remove disease-causing genes from Agrobacterium's Ti plasmid. Insert cry1Ac into T-DNA using DNA ligase → Recombinant Ti plasmid
3
Infect Brinjal Cells
Recombinant Agrobacterium infects brinjal plant cells → T-DNA integrates into brinjal chromosome
4
Select & Grow
Transformed cells selected using marker → grown in tissue culture → full Bt brinjal plant developed
5
Express Cry Protein
Every cell of the Bt brinjal plant now produces Cry1Ac protein — active pest deterrent throughout the plant lifecycle
🐛 Step B — How the Cry1Ac Protein Kills the Pest
How Cry1Ac kills the Fruit & Shoot Borer: Bt toxin crystals are ingested by the FSB larva → solubilised in the alkaline midgut → activated Cry toxins bind to specific receptors on midgut epithelial cells → toxin monomers insert into cell membrane → form pores → osmotic cell lysis → dead larva within 48–72 hours. Crucially, the Cry1Ac toxin requires the alkaline (high pH) gut of lepidopteran insects to activate — it remains harmless in the acidic stomachs of mammals, birds, and beneficial insects.
🎯
Highly Specific
Cry1Ac binds ONLY to receptors found in lepidopteran (moth/butterfly) larvae midgut. Mammals, birds, beneficial insects (bees, ladybirds, spiders) lack these receptors → completely safe for them.
💧
pH Activation
Cry1Ac pro-toxin is inactive in acidic pH. Activated ONLY in alkaline gut (pH 9–11) of insects. Human/animal stomachs are acidic (pH 1–3) → toxin remains inactive and is digested as normal protein.
☠
Death in 48–72 hrs
Once pores form in midgut cells, the insect stops eating within hours. Cell membranes rupture through osmotic pressure → larva dies within 48–72 hours. 98% mortality in shoots; 100% in fruits (compared to <30% in non-Bt).
📊 Effectiveness Data
Field trials showed: 98% insect mortality in Bt brinjal shoots and 100% in Bt brinjal fruits compared to less than 30% mortality in non-Bt counterparts. Pesticide spray frequency was reduced from 25–80 sprays per season to near zero for FSB. Estimated 37% yield gain and 42% reduction in total insecticide use over non-Bt hybrids. Estimated national economic benefit: over $400 million per year if commercially adopted.
📅
India's Bt Brinjal Timeline — A Saga of Approval, Moratorium & Controversy
2000–2025 · GEAC · SC · Jairam Ramesh · New Varieties
🌱
2000 — Development Begins
Mahyco-Monsanto Biotech (MMB) begins development of Bt Brinjal. USAID and Cornell University provide technical support. The cry1Ac gene inserted into multiple brinjal hybrid varieties using Ti plasmid method. Begins first small-scale contained field trials.
🔬
2006–2009 — Safety Review by GEAC
GEAC constitutes two expert committees between 2006 and 2009 for rigorous scientific review — food safety, environmental safety, human/animal health safety, and biodiversity impact. Based on the Review Committee on Genetic Manipulation (RCGM) recommendations and both expert committee reports, GEAC recommends environmental release of Bt Brinjal. First GM food crop ever recommended for release by GEAC in India.
✅
October 2009 — GEAC Approves
GEAC formally recommends environmental release of Bt Brinjal. This means approval for commercial cultivation if the Environment Ministry ratifies. It was hailed as a landmark — India's first GM food crop moving towards commercial release. However, the decision still required the Environment Minister's approval.
⛔
February 2010 — Jairam Ramesh Imposes Moratorium
Then Union Environment Minister Jairam Ramesh imposed an indefinite moratorium on Bt Brinjal after extensive nationwide public consultations with scientists, farmers, civil society groups, and state governments. He stated that the moratorium would be in place "until we are satisfied that the Bt brinjal is safe from the point of view of its long-term impact on human health and environment." He recommended 10 more years of field trials. UPSC-tested: The moratorium was imposed in 2010, NOT 2009.
⚖
2012–2013 — Supreme Court TEC Moratorium & Bio-piracy Case
The Supreme Court's Technical Expert Committee (TEC) imposed an additional moratorium on field trials of all GM crops in 2012, pending safety reviews. In October 2013, the Indian High Court began criminal proceedings against senior Mahyco-Monsanto officials for alleged bio-piracy — accessing brinjal germplasm (varieties) from Karnataka and Tamil Nadu without proper NBA consent. Mahyco became India's first company accused of bio-piracy.
🔬
2020–2023 — New Field Trials Approved (Janak & BSS-793)
GEAC approved biosafety research field trials (BRL-II) for two new indigenous transgenic brinjal varieties developed by the National Institute for Plant Biotechnology (NIPB):
• Janak — hybrid Bt brinjal variety
• BSS-793 — hybrid Bt brinjal variety
Both contain the Bt Cry1Fa1 gene (different from the original cry1Ac in Mahyco's variety). Field trials allowed in 8 states during 2020–23 after obtaining No-Objection Certificates (NOCs) from state governments. These are publicly-developed (non-corporate) varieties — a key distinction from the Mahyco version.
• Janak — hybrid Bt brinjal variety
• BSS-793 — hybrid Bt brinjal variety
Both contain the Bt Cry1Fa1 gene (different from the original cry1Ac in Mahyco's variety). Field trials allowed in 8 states during 2020–23 after obtaining No-Objection Certificates (NOCs) from state governments. These are publicly-developed (non-corporate) varieties — a key distinction from the Mahyco version.
⚠
2025 — Still Under Moratorium
Bt Brinjal remains under moratorium for commercial cultivation in India. Bt cotton remains the ONLY commercially approved GM crop. However, field trial data from Janak and BSS-793 varieties is being compiled. Bangladesh's experience (13 years of commercial Bt brinjal farming) is increasingly cited by proponents as evidence of safety. The debate continues — India's Bt Brinjal saga is far from over.
🔴 Current Affairs — GEAC Seeks Bangladesh Data (2018–ongoing)
India's GEAC has been formally seeking information from Bangladesh about the safety and performance of Bt Brinjal since 2018 — where four varieties (Bt Uttara, Bt Kajla, Bt Nayantara, Bt ISD006) have been commercially cultivated since 2013–14. This data request signals India's continued interest in Bt Brinjal, even as the moratorium persists. Bangladesh's decade-long experience without reported health or environmental disasters is a key data point in the ongoing Indian policy debate.
🌏
Bangladesh's Bt Brinjal Story — The World's First GM Food Crop
Since 2013 · 4 Varieties · 13 Years of Commercial Farming
🌍 World First
Bangladesh was the first country in the world to approve and commercially cultivate Bt Brinjal — making it the first GM food crop (vegetable) grown commercially anywhere. In October–November 2013, Bangladesh Agricultural Research Institute (BARI) received government permission for release of four Bt brinjal varieties for the 2013–14 growing season.
✅
What Bangladesh Shows (Proponents' View)
• 13+ years of commercial cultivation (2013–2025) with no reported mass health or environmental disasters
• Farmers report dramatic reduction in pesticide use and cost savings
• Significantly improved incomes for small brinjal farmers
• Yields improved substantially over conventional varieties
• No measurable adverse biodiversity impacts recorded
• GEAC India actively sought this data — indicating India is watching Bangladesh's experiment closely
• Farmers report dramatic reduction in pesticide use and cost savings
• Significantly improved incomes for small brinjal farmers
• Yields improved substantially over conventional varieties
• No measurable adverse biodiversity impacts recorded
• GEAC India actively sought this data — indicating India is watching Bangladesh's experiment closely
⚠
Critics' Response to Bangladesh Data
• Bangladesh's regulatory capacity and post-release monitoring are weaker than UPSC-level standards
• No independent long-term health studies have been conducted on consumers
• Context differs: Bangladesh has far fewer wild brinjal relatives than India (India has 29 wild species) — biodiversity risk is higher here
• Bangladesh had fewer traditional varieties to protect — India has 2,000–2,500 varieties at risk
• India is the centre of brinjal diversity globally — gene flow risk far greater here
• No independent long-term health studies have been conducted on consumers
• Context differs: Bangladesh has far fewer wild brinjal relatives than India (India has 29 wild species) — biodiversity risk is higher here
• Bangladesh had fewer traditional varieties to protect — India has 2,000–2,500 varieties at risk
• India is the centre of brinjal diversity globally — gene flow risk far greater here
🔗 UPSC Exam Angle — Bangladesh vs India
The Bangladesh comparison is frequently used in UPSC Mains answers on Bt Brinjal. Key points to include: (1) Bangladesh = first mover, 2013. India = development started 2000, still under moratorium. (2) India has higher biodiversity stakes — 29 wild brinjal species vs fewer in Bangladesh. (3) India's regulatory standards are more rigorous — GEAC, RCGM, state NOCs all required. (4) GEAC sought Bangladesh data in 2018 — shows India is learning from the experiment. (5) The comparison is a legitimate evidence-based argument for both sides.
⚖
Advantages vs Concerns — A Balanced UPSC Analysis
Benefits · Health · Environment · Ethics · Economics
✅ Advantages of Bt Brinjal
📈
Dramatic Yield Gain
Estimated 37% yield increase over non-Bt hybrids due to effective FSB control. 98% pest mortality in shoots, 100% in fruits vs <30% in conventional varieties.
💊
Massive Pesticide Reduction
42% reduction in total insecticide use. Farmers currently spray 25–80 times/season for FSB — near zero needed for Bt brinjal. Benefits: lower farmer costs, reduced health risks, less groundwater pollution.
💰
Economic Benefit
Estimated national benefit of $400 million+ per year to India if adopted. Significant income gain for 14 lakh small farmers currently losing 30–50% of crop to FSB.
🐝
Safe for Beneficial Insects
Cry1Ac does NOT affect beneficial insects: aphids, leafhoppers, spiders, lady beetles, bees — none have the specific receptor that binds Cry1Ac. Safer than broad-spectrum chemical pesticides.
🌿
No Morphological Change
Bt brinjal does NOT show different agronomic or morphological traits from non-Bt brinjal — it cannot out-compete native varieties in the ecosystem based on physical characteristics alone.
⚠ Concerns About Bt Brinjal
🏥
Human Health Risk
Antibiotic resistance marker genes used in development. Mahyco's own toxicity studies suggested possible immunological, liver, and reproductive issues with regular consumption. Brinjal (Solanaceae family) contains natural toxins — metabolic disruption could amplify these.
🌍
Biodiversity Crisis Risk
India has 2,000–2,500 brinjal varieties and 29 wild brinjal species. India is the global centre of brinjal diversity. Transgene flow to traditional and wild varieties through cross-pollination could devastate this irreplaceable genetic heritage.
⚗
Inadequate Safety Testing
Critics argued GEAC's safety testing was not stringent or specific enough for Solanaceae plants (which naturally contain alkaloids like solanine). The scope of GEAC's risk assessment was termed "narrow" by several scientists. Independent international peer review was lacking.
💸
Seed Monopoly Risk
GM seeds are patented and cannot be saved/replanted. Small farmers dependent on purchasing seeds every season from corporations. Concentration of seed market in few corporate hands — repeating Bt cotton's experience with royalties & corporate dependence.
📊
Unfair Comparison Benchmark
Agronomic studies compared Bt brinjal only to chemical-heavy conventional methods — NOT to best non-pesticide management (NPM) practices. Critics argue IPM (Integrated Pest Management) methods can achieve similar FSB control without GM technology.
🧠 Remember for Mains — Jairam Ramesh's 5 Reasons for Moratorium
"BEADS" — Bio-safety · Economic impact on farmers · Absence of independent testing · Diversity loss · Solanaceae concerns
Jairam Ramesh cited: (1) Inadequate independent safety studies (2) India as biodiversity hotspot for brinjal (3) Solanaceae family's complex toxin profile (4) Lack of international scientific consensus (5) Socioeconomic impact on small farmers — as reasons for the moratorium.
Jairam Ramesh cited: (1) Inadequate independent safety studies (2) India as biodiversity hotspot for brinjal (3) Solanaceae family's complex toxin profile (4) Lack of international scientific consensus (5) Socioeconomic impact on small farmers — as reasons for the moratorium.
📜
PYQs & Practice MCQs
UPSC Prelims & Mains Pattern · Direct Hit Topics
📜 UPSC Prelims 2015 — GS Paper I GEAC — Repeat PYQ
PYQ 2015
Q. The Genetic Engineering Appraisal Committee is constituted under the:
- a) Food Safety and Standards Act, 2006
- b) Geographical Indications of Goods (Registration and Protection) Act, 1999
- c) Environment (Protection) Act, 1986 ✓
- d) Wildlife (Protection) Act, 1972
GEAC is constituted under the Environment (Protection) Act, 1986 and Rules 1989 (Rules for manufacture, use, import, export, and storage of hazardous microorganisms/GMOs). It functions under the Ministry of Environment, Forest and Climate Change (MoEFCC). It is the apex regulator for environmental release of GMOs including GM crops. In the Bt Brinjal case, GEAC approved environmental release in 2009 — but this was overridden by the Environment Minister's moratorium in 2010 (the Minister had authority to override GEAC recommendation). This distinction is important for UPSC.
📜 UPSC Mains 2020 — GS Paper III (15 marks)
Mains 2020
Q. How is science interwoven deeply with our lives? What are the striking changes in agriculture triggered by science-based technologies? (250 words, 15 marks)
Bt Brinjal Angle for This Question:
Bt Brinjal Angle for This Question:
- Science & farming lives: Bt brinjal = science directly addresses a farmer crisis (25–80 pesticide sprays/season → near zero). Illustrates science woven into daily agricultural practice.
- Striking change #1 — Embedded pest control: Rather than spraying chemicals, the plant itself produces a targeted bio-insecticide (Cry1Ac) — a paradigm shift from external to internal crop protection.
- Striking change #2 — Regulatory science: GEAC's multi-year safety review process shows how science now governs what farmers can grow — a new relationship between lab and field.
- Striking change #3 — Global science community: Bangladesh's experience informs India's policy — agricultural science is now globalised through data sharing between GEAC and BARI.
- Tension: Science enables Bt brinjal; science also raises concerns (Solanaceae toxins, biodiversity impact) — showing science itself generates both the solution and the questions.
🧪 Practice MCQs — Bt Brinjal (Click to attempt)
Q1. Bt Brinjal was developed to resist which specific pest?
- (a) American Bollworm (Helicoverpa armigera)
- (b) Fruit and Shoot Borer (Leucinodes orbonalis)
- (c) Aphids and whiteflies (sucking pests)
- (d) Root-knot nematodes
Bt Brinjal was specifically developed to resist the Fruit and Shoot Borer (FSB), Leucinodes orbonalis — brinjal's most damaging pest, causing 50–70% crop loss in severe cases. Note: The Cry1Ac protein ALSO acts against Helicoverpa armigera (which also attacks brinjal fruits), but the primary target and the impetus for development was FSB. This is distinct from Bt Cotton, where the primary target is bollworm (Helicoverpa armigera and Pectinophora gossypiella). Also note: Bt crops do NOT work against sucking pests (aphids, whitefly) — a critical limitation of all Bt technology.
Q2. Consider the following statements about Bt Brinjal in India:
1. GEAC recommended environmental release of Bt Brinjal in 2009.
2. The moratorium on Bt Brinjal was imposed in 2010 by Environment Minister Jairam Ramesh.
3. Bt cotton is currently the only commercially approved GM crop in India.
4. Field trials of new indigenous Bt Brinjal varieties (Janak & BSS-793) containing cry1Fa1 gene were approved by GEAC for 2020–23.
Which of the above are correct?
1. GEAC recommended environmental release of Bt Brinjal in 2009.
2. The moratorium on Bt Brinjal was imposed in 2010 by Environment Minister Jairam Ramesh.
3. Bt cotton is currently the only commercially approved GM crop in India.
4. Field trials of new indigenous Bt Brinjal varieties (Janak & BSS-793) containing cry1Fa1 gene were approved by GEAC for 2020–23.
Which of the above are correct?
- (a) 1, 2 and 3 only
- (b) 2 and 4 only
- (c) 1, 3 and 4 only
- (d) 1, 2, 3 and 4
All four statements are correct. (1) GEAC recommended environmental release in 2009 after two expert committee reviews. (2) Jairam Ramesh, then Union Environment Minister, imposed the indefinite moratorium in February 2010 after nationwide public consultations — a landmark decision in India's GM crop governance. (3) Bt cotton (approved 2002) remains India's ONLY commercially approved GM crop as of 2025. (4) GEAC approved biosafety research field trials (BRL-II) for Janak and BSS-793 — two new indigenous varieties developed by NIPB (National Institute for Plant Biotechnology) containing the Cry1Fa1 gene (different from the original Cry1Ac) — in 8 states during 2020–23. These are publicly developed varieties, unlike the corporate Mahyco variety.
Q3. Why is the Cry1Ac protein in Bt Brinjal considered safe for mammals but toxic to the Fruit and Shoot Borer larva?
- (a) Cry1Ac is digested before it reaches the mammalian intestine, while insects cannot digest it
- (b) Mammals have a stronger immune system that neutralises the toxin before it causes harm
- (c) Cry1Ac requires alkaline gut conditions (pH 9–11) to activate — present in insect midguts but absent in acidic mammalian stomachs. Also, specific gut receptor proteins for Cry1Ac binding are found only in lepidopteran insects, not in mammals or birds
- (d) The concentration of Cry1Ac in brinjal is too low to harm mammals but sufficient to kill insects
The safety of Cry1Ac for mammals rests on two distinct mechanisms: (1) pH specificity — the Cry1Ac pro-toxin is inactive in acidic environments. Human/animal stomachs are highly acidic (pH 1–3), so the toxin cannot be activated and is digested as a normal protein. Insect midguts are alkaline (pH 9–11), which activates the toxin. (2) Receptor specificity — even if activated, Cry1Ac can only bind to specific receptor proteins (cadherin-like proteins called BT-R1) found exclusively in the midgut epithelium of lepidopteran insects (moths, butterflies). Mammals, birds, fish, and beneficial insects lack these specific receptors. Without binding, no pores form, no cell lysis occurs. Both mechanisms combined make Cry1Ac highly target-specific — a key safety argument for Bt crops.
Q4. India is considered the global centre of diversity for brinjal. Which of the following best explains why this makes Bt Brinjal's approval particularly risky for India compared to Bangladesh?
- (a) Indian brinjal farmers are more financially vulnerable than Bangladeshi farmers
- (b) India's GEAC regulations are stricter than Bangladesh's regulatory body
- (c) Indian brinjal is exported more widely, so contamination would have greater international trade consequences
- (d) India has approximately 2,000–2,500 brinjal varieties and 29 wild brinjal species, making transgene flow through cross-pollination a far greater biodiversity risk than in Bangladesh, which has fewer wild relatives
India's status as the global centre of brinjal diversity — with 2,000–2,500 cultivated varieties and 29 wild Solanum species (relatives of brinjal) — means that once transgenic Bt brinjal is commercially released, the cry1Ac transgene can spread via cross-pollination to traditional cultivated varieties and wild relatives. This could irreversibly alter India's unique brinjal genetic heritage — one of the richest in the world and a resource for future crop improvement globally. Bangladesh has far fewer wild brinjal relatives, making this risk comparatively lower. India is a signatory to the Convention on Biological Diversity (CBD), which requires considering impacts on biodiversity before approving any GMO — making the biodiversity argument legally binding, not just ethical.
Q5. The new Bt Brinjal varieties "Janak" and "BSS-793" approved for field trials in India differ from the original Mahyco Bt Brinjal in which of the following ways?
1. They were developed by a public sector institution (NIPB), not a private corporation.
2. They contain the Cry1Fa1 gene instead of the original Cry1Ac gene.
3. They have already been approved for commercial cultivation in India.
1. They were developed by a public sector institution (NIPB), not a private corporation.
2. They contain the Cry1Fa1 gene instead of the original Cry1Ac gene.
3. They have already been approved for commercial cultivation in India.
- (a) 1 and 2 only
- (b) 1 and 2 only
- (c) 2 and 3 only
- (d) 1, 2 and 3
Statements 1 and 2 are correct; Statement 3 is WRONG. Janak and BSS-793 were developed by the National Institute for Plant Biotechnology (NIPB) — a public sector institution under the Indian Council of Agricultural Research (ICAR), unlike the original Mahyco-Monsanto corporate product. They contain the Cry1Fa1 gene rather than Cry1Ac. However, as of 2025, these varieties have only been approved for biosafety research field trials (BRL-II) in 8 states during 2020–23 — NOT for commercial cultivation. The moratorium on commercial Bt brinjal cultivation in India remains in place. The public-sector origin of Janak and BSS-793 is significant: it addresses concerns about corporate monopoly and seed pricing that plagued the Mahyco variety.
⚡ Quick Revision — Bt Brinjal Summary
| Topic | Key Facts to Remember |
|---|---|
| What is Bt Brinjal | Transgenic brinjal with cry1Ac gene from Bacillus thuringiensis. Created using Agrobacterium Ti plasmid method. Resists Fruit and Shoot Borer (FSB) — Leucinodes orbonalis. |
| Developer | Mahyco-Monsanto Biotech (MMB). Public varieties (Janak, BSS-793 with Cry1Fa1): National Institute for Plant Biotechnology (NIPB). |
| How Cry1Ac kills | Ingested by FSB larva → activated in alkaline insect gut (pH 9–11) → binds to specific midgut receptors → forms membrane pores → osmotic cell lysis → larva dies in 48–72 hrs. Safe for mammals (acidic stomach, no receptors). |
| India Timeline | 2000 development → 2006–09 GEAC review → Oct 2009 GEAC approval → Feb 2010 Jairam Ramesh moratorium → 2020–23 field trials (Janak & BSS-793) → 2025: still under moratorium. |
| GEAC constituted under | Environment (Protection) Act, 1986 and Rules 1989. Under MoEFCC. UPSC 2015 PYQ. |
| Bangladesh | World's first country to grow Bt brinjal commercially (Oct 2013). 4 varieties: Bt Uttara, Bt Kajla, Bt Nayantara, Bt ISD006. 13+ years without mass health issues. GEAC India sought this data in 2018. |
| Advantages | 37% yield gain · 42% less insecticide · 98–100% FSB mortality · $400M/yr national benefit · Safe for beneficial insects · No morphological difference from non-Bt. |
| Concerns | Antibiotic resistance markers · Solanaceae toxin risks · India = global brinjal diversity centre (2,500 varieties, 29 wild species) · Transgene flow risk · Seed monopoly · Inadequate independent testing. |
| Current Status 2025 | Still under moratorium for commercial cultivation. Only Bt cotton is India's approved GM crop. Field trial data from Janak & BSS-793 being compiled. |
| Bio-piracy Case | 2013: Mahyco accused of bio-piracy — accessing brinjal germplasm from Karnataka & Tamil Nadu without NBA/state biodiversity board consent. First such case in India against a seed company. |
🚨 5 UPSC Traps — Bt Brinjal:
Trap 1 — "GEAC approved Bt Brinjal for commercial cultivation in 2009" → WRONG! GEAC recommended environmental release — this is NOT the same as commercial cultivation approval. The Environment Ministry still needed to ratify it. Instead, the Environment Minister imposed a moratorium in 2010 — so commercial approval never happened. The sequence: GEAC approval (2009) → Ministerial moratorium (2010) → Still on hold (2025).
Trap 2 — "Jairam Ramesh imposed the moratorium in 2009" → WRONG! The GEAC approved Bt Brinjal for environmental release in October 2009. Jairam Ramesh imposed the moratorium in February 2010 after nationwide consultations. Students confuse these two dates. Remember: 2009 = GEAC yes; 2010 = Minister no.
Trap 3 — "Bt Brinjal is effective against all pests including aphids and whiteflies" → WRONG! Bt crops using cry genes are effective ONLY against chewing lepidopteran insects (moths/butterflies) like FSB. They have NO effect on sucking pests (aphids, whitefly, jassid) — because sucking insects feed on plant sap and never consume the cry protein embedded in plant cells. This was exactly Bt cotton's limitation with whitefly infestations.
Trap 4 — "Bangladesh approved Bt Brinjal in 2009" → WRONG! Bangladesh's government approved release in October–November 2013 for the 2013–14 growing season. Not 2009. The four varieties released were Bt Uttara, Bt Kajla, Bt Nayantara, and Bt ISD006. Bangladesh, NOT India, was the first country to commercially grow Bt Brinjal.
Trap 5 — "Janak and BSS-793 are approved for commercial cultivation" → WRONG! Janak and BSS-793 received approval only for biosafety research field trials (BRL-II) in 8 states during 2020–23. They are NOT approved for commercial sale or cultivation. Also, they use the Cry1Fa1 gene — different from the original Cry1Ac in Mahyco's variety. And they are public-sector developed (NIPB/ICAR) — not corporate products.
Trap 1 — "GEAC approved Bt Brinjal for commercial cultivation in 2009" → WRONG! GEAC recommended environmental release — this is NOT the same as commercial cultivation approval. The Environment Ministry still needed to ratify it. Instead, the Environment Minister imposed a moratorium in 2010 — so commercial approval never happened. The sequence: GEAC approval (2009) → Ministerial moratorium (2010) → Still on hold (2025).
Trap 2 — "Jairam Ramesh imposed the moratorium in 2009" → WRONG! The GEAC approved Bt Brinjal for environmental release in October 2009. Jairam Ramesh imposed the moratorium in February 2010 after nationwide consultations. Students confuse these two dates. Remember: 2009 = GEAC yes; 2010 = Minister no.
Trap 3 — "Bt Brinjal is effective against all pests including aphids and whiteflies" → WRONG! Bt crops using cry genes are effective ONLY against chewing lepidopteran insects (moths/butterflies) like FSB. They have NO effect on sucking pests (aphids, whitefly, jassid) — because sucking insects feed on plant sap and never consume the cry protein embedded in plant cells. This was exactly Bt cotton's limitation with whitefly infestations.
Trap 4 — "Bangladesh approved Bt Brinjal in 2009" → WRONG! Bangladesh's government approved release in October–November 2013 for the 2013–14 growing season. Not 2009. The four varieties released were Bt Uttara, Bt Kajla, Bt Nayantara, and Bt ISD006. Bangladesh, NOT India, was the first country to commercially grow Bt Brinjal.
Trap 5 — "Janak and BSS-793 are approved for commercial cultivation" → WRONG! Janak and BSS-793 received approval only for biosafety research field trials (BRL-II) in 8 states during 2020–23. They are NOT approved for commercial sale or cultivation. Also, they use the Cry1Fa1 gene — different from the original Cry1Ac in Mahyco's variety. And they are public-sector developed (NIPB/ICAR) — not corporate products.
