How and to what extent would micro-irrigation help in solving India’s water crisis ?
Approach · directive: “how / to what extent”
What it asks · Explain how micro-irrigation saves water and raises yields, then judge how far it can solve a crisis that also involves groundwater depletion, pricing and cropping choices.
The question has 2 parts — answer each
- How: explain the ways micro-irrigation saves water and raises farm returns, with the policy support behind it
- To what extent: judge its limits (coverage, rebound effect, constraints) and what else the water crisis needs
Open with · Agriculture is the largest user of India's water, so raising water-use efficiency on farms is central to any answer to the water crisis.
Cover
- How: drip and sprinklers place water at the root zone, cutting evaporation, runoff and seepage, so each drop and unit of energy yields more.
- Wider gains: fertigation, higher yields, fewer weeds and lower fertiliser and labour costs; suits undulating, saline or water-scarce land.
- Policy push: Per Drop More Crop under PMKSY (from 2015-16) and the Micro Irrigation Fund with NABARD give subsidy and cheaper finance to States and farmers.
- Extent is limited: agriculture is the largest water user, but micro-irrigation covers well under a tenth of the net sown area and is concentrated in a few States (Andhra Pradesh, Gujarat, Karnataka, Tamil Nadu, Maharashtra).
- Constraints: high upfront cost for small holdings, clogging and poor servicing, unreliable power, delayed subsidy, and flood-irrigated paddy, wheat and sugarcane.
- Farm-level savings may not cut basin-level use if saved water expands cropped area; so pair with groundwater regulation, suitable crop choice and pricing reform.
- Other levers: watershed and recharge structures, canal modernisation, wastewater reuse and industrial and urban efficiency.
Close with · Micro-irrigation is a strong tool but only one part of the answer; it works best with crop choice, groundwater governance and farmer finance.
Question: UPSC's CS (Main) 2021, GS Paper III — paper ↗. Approach: Minimalist IAS, checked 30 Sept 2026 (how we verify) — UPSC publishes no model answers. ·
Model answer · 219 words (UPSC limit 150) · Minimalist IAS
Agriculture is the largest user of India's water, mostly through flood irrigation, so farm-level efficiency is central to easing the crisis.
How micro-irrigation helps
- Drip and sprinkler systems deliver water at the root zone, cutting evaporation, runoff and seepage, so each drop and each unit of pumping energy yields more.
- Fertigation delivers nutrients with water, raising yields and cutting fertiliser, weeding and labour costs; it suits undulating, saline and water-scarce land.
- Policy support: Per Drop More Crop under PMKSY (from 2015-16) and the Micro Irrigation Fund with NABARD give subsidy and cheaper finance.
To what extent
- Coverage is still well under a tenth of the net sown area and concentrated in Andhra Pradesh, Gujarat, Karnataka, Tamil Nadu and Maharashtra; paddy, wheat and sugarcane remain flood-irrigated.
- Savings per hectare may not cut basin-level use if farmers use the saved water to expand area, so groundwater regulation must go with it.
- Constraints: high upfront cost for small holdings, clogging and poor servicing, unreliable power and delayed subsidy.
- The crisis also stems from crop choice, free power and urban and industrial demand, so watershed recharge, canal modernisation, wastewater reuse and pricing reform are needed too.
Micro-irrigation is a strong but partial answer: with crop diversification, groundwater governance and finance for small farmers it can carry much of the load; alone it cannot.
Written by Minimalist IAS from facts checked at source (how we verify) — a little fuller than exam length, so every part of the question is covered; in the hall, keep the structure and trim the detail. UPSC publishes no model answers: compare your structure and coverage with this, then write your own.