Green Revolution

Topic: Land Use, Farming Systems and Cropping Seasons in India · NCERT: Class 7, Ch 1 "The Story of Indian Farming"; Class 8, Ch 1 "Natural Resources and Their Use"; Class 10, Ch 4 "Agriculture"; Class 10, Ch 6 "Manufacturing Industries"; Class 12, Ch 3 "Land Resources and Agriculture"; Class 12, Ch 4 "Water Resources"

Meaning

The Green Revolution was the sudden, large rise in food-grain output in India from the mid-1960s, mostly in wheat at first. It came from using a package of high-yielding variety (HYV) seeds, chemical fertilisers and assured irrigation together, and later farm machinery, first in the irrigated areas of Punjab, Haryana, western Uttar Pradesh, Andhra Pradesh and Gujarat.

It matters because it ended India's need to import food under PL-480 and made the country self-reliant in food grains. It also widened the gaps between regions and caused serious soil, water and health damage, especially in Punjab.

Explanation

Why it was needed (cause)

• Partition (1947) cut into India's farm base:
• About one-third of the irrigated land of undivided India went to Pakistan. Most of it was the canal-fed land of West Punjab.

• India also lost some of its best food-growing land.

• The first plan after independence ran out of steam:

• It had three parts: switching from cash crops (crops grown for sale, such as jute and cotton) to food crops, intensification (growing more crops each year on land already farmed) and extension (bringing waste and fallow land under the plough).

• Output rose at first, then stagnated (stopped growing) in the late 1950s.

• The package method was tested first:

• IADP (1960-61) gave chosen districts credit, better seeds, fertiliser and extension (government workers who teach farmers new methods in their fields) all at the same time.

• IAAP (1964-65) took the same method to more areas.

• The 1965 and 1966 droughts pushed India to act:

• Two failed monsoons in a row caused a serious food shortage.
• India had to import grain under PL-480, a US food-aid law ("Food for Peace") that let India buy American wheat with rupees.
• This dependence showed that India had to grow its own food.

How it worked (the package)

• HYVs are crop varieties bred to give much more grain per hectare than traditional seeds. They give this extra grain only when they get enough water and fertiliser.
• Dwarf wheat came from Mexico (CIMMYT, developed under Norman Borlaug).
• Rice IR-8 ("miracle rice") came from the Philippines (IRRI, Los Baños).

• Both were available in India by the mid-1960s.

• Why dwarf plants?

• A short, strong stem holds a heavy head of grain without falling over (lodging).

• So the plant can take heavy doses of fertiliser and turn them into grain, not extra stem.

• What the package needed:

• Assured irrigation, meaning water reaches the field at the right time every time, not only when it rains.
• Heavy chemical fertiliser. Fertiliser use has risen about 15 times since the mid-1960s (NCERT).
• Pesticides, because HYVs are highly susceptible to pests (insects and diseases attack them easily), so pesticide use rose sharply.

• Farm machinery such as tractors, threshers and tube-wells, which came later.

• India's architect: M.S. Swaminathan, the farm scientist who worked with Borlaug to bring HYVs to Indian fields. He received the Bharat Ratna in 2024.

Results: gains and uneven spread

• Gains:
• India became self-reliant in food grains and stopped needing PL-480 imports.
• It boosted agro-input industries (makers of fertiliser, pesticide, seed, tractors and pump-sets).
• It boosted agro-processing industries (flour mills, rice mills, food processing).

• The long-term result: India's food-grain output reached a record 357.73 million tonnes in 2024-25 [2]. India is now a food-surplus country in rice and wheat, but pulses and oilseeds still lag.

• Why the gains were uneven:

• Cause: HYVs need assured irrigation, so only areas with canals or tube-wells could use them.
• Process: the package went first to the irrigated north-west and mostly to wheat. Rainfed areas and crops such as pulses, millets and rainfed rice were left out.
• Result: regional disparities (gaps between regions) widened. Punjab and Haryana moved far ahead of eastern and central India.

• Correction: after the 1970s, the technology slowly spread to eastern and central India and to rice.

• Later phases:

• 1980s: focus on rainfed areas (dryland farming, watersheds).
• 1988: agro-climatic planning, meaning plans made zone by zone, where each zone has similar soil, rainfall and temperature.
• 1980s–1990s: diversification into dairy (the White Revolution), poultry, horticulture, livestock rearing and aquaculture (fish farming).
• 1990s: liberalisation, which opened Indian farming to global prices and competition.

Costs and limits

• Soil impoverishment (soils growing poorer):
• Wheat and rice are grown on the same land year after year, with heavy chemical fertiliser.
• Organic matter and micronutrients get used up.

• Yields stop rising even when more fertiliser is added.

• Groundwater depletion:

• Cause: tube-wells water paddy, a crop that needs a lot of water, in a semi-arid state.
• Process: farmers pump out more water each year than the rain puts back.

• Result: the water table drops year after year. In Punjab, the stage of extraction (water drawn out as a share of the water that can safely be taken) was 156.87% in GWRA-2024 [3].

• Agrochemical contamination: fertilisers and pesticides seep into soil and groundwater. In Punjab samples (2024), uranium was above 30 ppb in 32.6% of samples and nitrate was above 45 mg/L in 12.58% [3].

• Health and pollinators:
• Cancer clusters have been reported in Punjab's Malwa region.
• Pesticides kill bees and other insects that crops need for pollination.

Where it occurs

• First Green Revolution areas in India: the irrigated parts of:
• Punjab
• Haryana
• Western Uttar Pradesh
• Andhra Pradesh (the irrigated delta lands)

• Gujarat

• Later spread: after the 1970s, to eastern and central India and to rice. The BGREI programme (Bringing Green Revolution to Eastern India) works on the same goal.

• Where the seeds came from:
• Mexico: dwarf wheat, from CIMMYT (International Maize and Wheat Improvement Center).

• Philippines: rice IR-8, from IRRI at Los Baños.

• Hotspot of the damage, Punjab:

• Yearly groundwater recharge (water that soaks back into the ground) is 19.19 bcm (billion cubic metres). The safely extractable amount is 17.63 bcm, but actual extraction is 27.66 bcm [3].
• 115 of 153 assessment units (75.16%) are over-exploited. Only 22 (14.38%) are safe [3].
• Malwa region (south of the Sutlej: Bathinda, Mansa, Faridkot and nearby districts) has reported cancer clusters. The night train from Bathinda to Bikaner, which carries patients to a cancer hospital, is called the "cancer train".

Don't confuse with

• IADP (1960-61) / IAAP (1964-65): these package programmes came before the Green Revolution. IADP started before HYV seeds reached India. The Green Revolution began only when HYVs arrived in the mid-1960s.
• White Revolution (Operation Flood): this was the drive to raise milk output, part of the 1980s–1990s diversification. The Green Revolution was about food grains, mainly wheat at first.
• Second Green Revolution / BGREI: these are later efforts to take high yields to eastern India and rainfed areas. The first Green Revolution was focused on the irrigated north-west.
• Extension of cultivation (1950s strategy): this raised output by farming more land. The Green Revolution raised yield per hectare on land that was already irrigated.

Prelims Hooks

• Dwarf wheat → Mexico (CIMMYT, Norman Borlaug); rice IR-8 → Philippines (IRRI). A common trap swaps the two countries.
• The first Green Revolution states were Punjab, Haryana, western UP, Andhra Pradesh and Gujarat. It did not start in eastern India (Bihar, Odisha, West Bengal).
• It first favoured wheat over rice, and irrigated areas over rainfed ones.
• Correct order: IADP (1960-61) → IAAP (1964-65) → droughts of 1965 and 1966 with PL-480 imports → Green Revolution (mid-1960s) → rainfed focus (1980s) → agro-climatic planning (1988) → liberalisation (1990s).
• M.S. Swaminathan, architect of India's Green Revolution, received the Bharat Ratna in 2024.
• Groundwater classes by stage of extraction: Safe ≤70%, Semi-critical 70–90%, Critical 90–100%, Over-exploited >100%. Punjab's stage was 156.87% in GWRA-2024 [3].

Mains Points

• Causes (GS-I): Partition took away irrigated land. Output stagnated in the late 1950s, and the 1965-66 droughts forced PL-480 imports. HYV technology was ready from Mexico and the Philippines, and IADP and IAAP had already tested the package method. Together these made a high-input, yield-led strategy both necessary and possible.
• Regional pattern and policy response (GS-I): gains were concentrated in the irrigated north-west and in wheat, which widened the gap with rainfed and eastern India. The state responded with the spread east after the 1970s, the rainfed focus of the 1980s, agro-climatic planning in 1988, diversification into dairy, poultry, horticulture and fisheries, and BGREI.
• Environmental costs (GS-III): the model caused soil impoverishment, groundwater depletion and agrochemical contamination. In Punjab, 115 of 153 units are over-exploited, and uranium and nitrate exceed safe limits in many samples (GWRA-2024) [3]. Cancer clusters in Malwa and harm to pollinators add to the damage. Responses include moving away from paddy to other crops, micro-irrigation and balanced fertiliser use. These help keep India's food security, a record 357.73 Mt in 2024-25 [2], without draining its soil and water.

Related concepts

• Intensive Agricultural District Programme
• High-yielding varieties

Read more

• Agricultural development since 1947 and the Green Revolution