Breaking down the question
The question has two parts. Highlight the main features asks for a clear account of what the Inter-linking of Rivers (ILR) project is and how it is designed to work. Probable advantages to Indian agriculture asks for a reasoned projection of its likely benefits for farming and the rural economy.
The word probable is important — it invites a measured, conditional assessment rather than uncritical endorsement. As a sociology answer within challenges of social transformation, the response should present the developmental promise while remaining alert to the social and ecological costs that make the gains contingent.
The note on the crisis of development, displacement and sustainability frames the wider debate.
How to approach it
First describe the project's main features: the ambition to connect surplus and deficit river basins through canals and reservoirs, its Himalayan and Peninsular components, and its central logic of inter-basin water transfer to move water from flood-prone to drought-prone regions.
Then set out the probable advantages to agriculture: expanded and assured irrigation, drought and flood mitigation, additional cropping and food security, and hydropower and rural livelihoods. Round the answer with a sociological caveat — that the benefits depend on managing displacement and ecological cost — so the assessment stays balanced.
Model answer
The Inter-linking of Rivers (ILR) project is one of independent India's most ambitious water-engineering visions: a national grid of canals, reservoirs and lifts designed to redistribute water from surplus to deficit river basins.
Main features of the project. First, its organising principle is inter-basin water transfer — moving water from regions of abundance to regions of scarcity, on the premise that India's water is unevenly distributed in space and time. Second, it is conceived in two great components: a Himalayan component linking Ganga, Brahmaputra and their tributaries through storage dams, and a Peninsular component centred on the Mahanadi, Godavari, Krishna, Cauvery and west-flowing rivers. Third, it envisages a vast physical infrastructure — link canals, reservoirs, barrages and pumping systems — to store monsoon surplus and convey it across basins. Fourth, its stated objectives combine flood control in the eastern and northern basins with drought relief in the water-short south and west, alongside irrigation, hydropower and navigation.
Probable advantages to Indian agriculture. The agricultural case is substantial. The foremost benefit is assured and expanded irrigation: by carrying water to arid and rain-dependent tracts, the project could bring large new areas under cultivation and reduce farmers' dependence on an erratic monsoon. This would enable additional cropping seasons and higher cropping intensity, raising output and incomes.
A second advantage is drought-proofing. Regions such as Bundelkhand, Marathwada and Rayalaseema suffer recurrent crop failure; transferred water could stabilise farming and check distress migration and agrarian suicides. Third, the storage and diversion structures offer flood mitigation in Bihar, Assam and the eastern plains, protecting standing crops and farmland from repeated inundation.
Fourth, the project promises collateral gains for the rural economy: hydropower to run pumps and agro-processing, improved rural water supply, and fisheries and navigation along the canals. Together these could strengthen food security for a growing population and reduce regional disparities in agricultural prosperity.
A sociological caveat. These advantages, however, are probable rather than assured. Large reservoirs and canals entail development-induced displacement of farming and forest communities, and the submergence of fertile land and habitat. Ecologists warn of altered river ecology, salinity, silting and disruption of the monsoon-dependent flood-plain agriculture that the transfers might unsettle. The gains for agriculture therefore depend on humane resettlement, environmental safeguards and inter-state cooperation over water sharing.
On balance, the Inter-linking of Rivers could deliver major benefits to Indian agriculture — assured irrigation, drought and flood control, higher output and food security — provided its considerable social and ecological costs are anticipated and managed. As a project of social transformation, its success will be judged not by engineering alone but by whether growth is reconciled with equity and sustainability.
Examiner's perspective
The weaker scripts either narrate the project as a purely technical scheme or condemn it outright, missing the question's twofold demand: describe the features, then reason out the probable advantages. The word probable rewards candidates who present the benefits as conditional rather than guaranteed.
A high-scoring answer sets out the inter-basin logic and the Himalayan and Peninsular components crisply, then builds the agricultural case around assured irrigation, drought-proofing, flood control and food security. The best answers, writing as sociologists within challenges of social transformation, close with the displacement and ecological caveat and cite the sustainability debate — showing that the advantages hinge on managing social cost. Naming specific drought-prone regions and the two project components lends concreteness that examiners credit.