India’s long-standing focus on large dams and canal networks is being re-evaluated as new evidence highlights the crucial role of decentralised water systems in sustaining agriculture and rural livelihoods. Experts now argue that the country’s irrigation future does not lie in choosing between big infrastructure and small solutions, but in integrating both into a cohesive, efficient system.
For decades, irrigation policy has prioritised the expansion of large and medium projects. While these have created significant irrigation potential, their benefits have often been uneven. Farmers located at the head of canal systems typically receive reliable water supply, while those at the tail-end frequently face shortages, forcing them to depend on groundwater as a backup.
Recent field studies conducted by the National Council of Applied Economic Research across 20 states reveal a more complex reality. While large irrigation projects do contribute to agricultural growth, their impact often extends beyond designated command areas through indirect benefits such as groundwater recharge and improved connectivity. At the same time, disparities within these command areas continue to persist.
This has brought renewed attention to decentralised water conservation structures such as check dams, farm ponds, recharge pits and traditional systems which quietly sustain India’s agricultural economy. These systems play a vital role in slowing surface runoff, improving soil moisture and recharging groundwater, particularly in water-stressed regions.
States like Gujarat and Rajasthan offer compelling examples of how such interventions can transform local water security. In Gujarat, widespread construction of check dams and farm ponds has significantly improved groundwater levels, enabling farmers to stabilise crop production. Meanwhile, in Rajasthan, the revival of traditional structures like johads small earthen dams used to capture rainwater has led to the resurgence of seasonal rivers and brought previously barren land under cultivation.
Laporiya stands as a well-known example, where community-led restoration of johads has improved water availability, boosted agricultural productivity and enhanced livelihoods. Similar success stories have emerged in Maharashtra through watershed development programmes and in Telangana under initiatives like tank restoration.
The impact of these decentralised systems extends far beyond farming. Improved water access has reduced seasonal migration, created local employment opportunities and enabled households to invest in better housing, education and healthcare. It has also eased the burden on women, who traditionally bear the responsibility of fetching water.
However, experts warn of a growing sustainability challenge. Even in canal-irrigated areas, increasing dependence on groundwater is putting pressure on already stressed aquifers. Without adequate recharge mechanisms, this trend could lead to long-term water depletion.
Government initiatives such as the “Per Drop More Crop” programme have begun to promote efficient water use through micro-irrigation. Yet, these efforts often operate in isolation and fail to address the broader need for integrated water management.
The key, experts argue, is to move away from a project-centric approach and adopt a systems-based perspective. This means evaluating irrigation not just by the infrastructure created, but by real outcomes such as water use efficiency, equitable distribution and long-term sustainability.
Large dams and canal systems will continue to play a critical role in ensuring water security at scale. At the same time, decentralised structures are essential for enhancing resilience, improving last-mile delivery and buffering the impacts of climate variability.
India’s water challenge is no longer just about expanding access it is about managing resources intelligently. By recognising the complementary strengths of large and small systems, policymakers can build a more balanced and sustainable irrigation framework.
In the face of rising climate pressures and increasing demand for water, the path forward is clear: a unified approach where massive infrastructure and grassroots solutions work together to secure the country’s agricultural future.