The purpose of this paper is to: challenge some of the misplaced notions of food security challenges posed by the country; by examining how far water becomes a constraint in achieving food security in different regions; analyze the potential future impacts of problems on nation

India is the largest groundwater user in the world, with an estimated usage of around 230 cubic kilometers per year, more than a quarter of the global total. With more than 60 percent of irrigated agriculture and 85 percent of drinking water supplies dependent on it, groundwater is a vital resource for rural areas in India.

This paper attempts to trace the history of irrigation development from early 19th century to the present to emphasize the shifting of focus from the government controlled major and medium surface irrigation systems to farmer-controlled ground water irrigation systems.

An important input for sustainable agricultural development in hard rock areas is access to groundwater irrigation. In hard rock areas, due to cumulative well interference, the life of

This latest UNESCO publication explores how to maximize the use of groundwater and rainwater for development and climate change adaptation in an approach called 3R that refers to Recharge, Retention & Reuse.

The methodology for ground water resources estimation is based on relatively sound scientific basis. It also meets adequately well the practical requirements for formulating rational ground water development strategies.