"Analyze the Role of Satellite-Based Technologies in Achieving Climate-Smart Agriculture and Food Security in India" — UPSC Mains 2026 GS1
A complete, examiner-standard 150-word model answer for the UPSC Mains 2026 GS Paper 1 question on satellite technology and climate-smart agriculture — with pointer-based structure, a data-to-action pipeline diagram, static core content, and the 2025–26 NISAR/Krishi-DSS/FASAL 2.0 current affairs linkage.
UPSC Mains 2026 GS Paper 1 asked candidates to analyze the role of satellite-based technologies in achieving climate-smart agriculture and food security in India, within a strict 150-word limit. Below is a full model answer in pointer-and-diagram format, along with a static-portion refresher and the relevant 2025–26 current affairs hook.
"Analyze the role of satellite-based technologies in achieving climate-smart agriculture and food security in India." (150 words)
Model Answer
Introduction
Climate-smart agriculture rests on three pillars — productivity, climate resilience, and emission reduction — and satellite-based Earth observation increasingly underpins all three in India's food security strategy.
Body
Earth Observation
Resourcesat, EOS-04/06, NISAR
Analysis Platforms
FASAL, NADAMS, Bhoonidhi
Decision Support
Krishi-DSS, AgriStack
Farmer/Policy Action
Advisory, insurance, DBT
- FASAL programme — uses Resourcesat-2A, EOS-04 and EOS-06 multispectral and SAR data to generate pre-harvest yield estimates for 11 major crops across 557 districts, enabling proactive rather than reactive planning.
- NADAMS geoportal — tracks rainfall, soil moisture and vegetation stress for early drought warning.
- NISAR mission — its S-band SAR data, distributed via the Bhoonidhi portal, generates 100-metre resolution soil-moisture products critical for irrigation scheduling and drought risk assessment.
- PMFBY/KISAN — satellite-based "smart sampling" for Crop Cutting Experiments speeds up and de-biases insurance claim settlement after climate shocks.
- Krishi-DSS — integrates satellite imagery with soil, weather and water data into a single real-time advisory platform for farmers and policymakers.
Conclusion
Satellite technology has shifted Indian agriculture toward anticipatory, data-driven planning rather than reactive crisis response, though its promise for food security will only be fully realised once last-mile usability and rural connectivity gaps are closed.
Key programmes: FASAL (Forecasting Agricultural output using Space, Agro-meteorology and Land-based observations, since 2007-08), NADAMS (National Agricultural Drought Assessment and Monitoring System), CHAMAN (horticulture geoinformatics), KISAN (crop insurance via space tech), all unified under NPSTA (National Programme on Use of Space Technology for Agriculture, 2017).
Key satellites/platforms: Resourcesat-2/2A, Cartosat-1, RISAT-1/1A, EOS-04, EOS-06, NISAR (NASA-ISRO joint mission). Portals: Bhuvan, VEDAS, Bhoonidhi. Krishi-DSS launched 16 August 2024; AgriStack is India's Digital Public Infrastructure layer for agriculture.
Answer Writing Tips for This Question
- Structure the body around the three pillars of climate-smart agriculture (productivity, resilience, mitigation) — it gives "analyze" an organising framework rather than a loose list of programme names.
- A data-to-action pipeline diagram (satellite → analysis platform → decision support → farmer action) visually shows you understand the full chain, not just isolated ISRO acronyms.
- Name specific satellites and their resolution/capability (NISAR's 100m soil-moisture products) rather than saying "satellites help farmers" — precision distinguishes a strong technology answer.
- Cover both production-side and risk-side applications — crop forecasting AND insurance/claims — since food security depends on both growing enough and protecting farmers from climate shocks.
- Anchor with the most recent developments (NISAR data release via Bhoonidhi, Krishi-DSS, FASAL 2.0) to show current, exam-ready awareness rather than outdated programme lists.
- Close with a genuine limitation (last-mile usability, connectivity) — "analyze" is rewarded for critical balance, not just a list of achievements.
