Keeping in view the disadvantages and rising resistance against the multipurpose projects, water harvesting system is considered a viable alternative both socioeconomically and environmentally.
- In ancient India also along with the sophisticated hydraulic structures, there existed an extraordinary tradition of various water harvesting systems.
- People adopted different techniques in different areas. In hilly regions people built diversion channels like the ‘guls’ or “kuls’ for agriculture.
- Roof-top rainwater harvesting was commonly practised to store drinking water, particularly in Rajasthan.
- In the flood plains of Bengal, people developed inundation channels to irrigate their fields. Khadins, Johads and Tanks are the forms of rainwater harvesting practised in Rajasthan.