Question

why are different water harvesting system consider available both socially, economically and environment in a country like india?

Answer 1

i) In ancient India, along with the sophisticated hydraulic structures, there existed an extraordinary tradition of rain water harvesting system.
ii) For example, the hilly & mountainous regions, people built diversion channels like 'guts' or 'kuls' of western himalayas for agriculture.
Rooftop harvesting is practised in Rajasthan to store drinking water.
In West Bengal people developed inundation channels to divert flood waters to irrigate their fields.
In semi-arid & arid regions of Rajasthan agricultural lands were converted into rain fed storage structures that allowed the water to stand & moisten the soil like the 'khadins' in Jaisalmer & 'Johads'in Rajasthan.