Kachchh district of Gujarat (India) is situated in an arid zone and has a tropical monsoon climate. The district receives water from the south-west monsoon rains. The arid zone of India accounts for nearly 12% of the Indian sub-continent’s geographical area (Bhandari in Sustainable horticultural systems, chapter: horticulture based production system in Indian arid regions. Springer, Cham, pp 19–28, 2004 [1]) and the state of Gujarat occupies second largest arid and semi-arid area in the country. The surface water resource is constrained by low rainfall, while aquifers are traditionally looked as a dependable source of water. This has threatened the livelihoods of underprivileged Agrarian communities dependent on monsoon and on mono crop outputs. In such water stressed areas, ‘Bhungroo’ technology has proved to be a life-saver. Bhungroo is a local water management system that injects and stores excess rainfall underground and lifts it out for use during dry spells. The underground reservoir has the capacity to hold nearly 40 million litres of rainwater with merely 10 days of good rainfall and can supply water for as long as seven months. Artificially recharging aquifers by adding rainwater run off to underground water reservoirs enables the communities for yearlong farm productivity. The rainwater when mixed with the underground saline water brings down the salinity of the groundwater, making it fit for agricultural use. By curtailing desertification, the technology helps to build resilience to climate change and rejuvenate local biodiversity. The replication and scale-up of such source sustainability measures and sustaining the achieved outputs are key to ensuring that outlays of the intervention reach sustainable outcomes.