Definition

Several methods are:

Practices in India

Tamil Nadu is the first state in India which has made roof top rainwater harvesting structure compulsory to all the houses across the state. There are legal provisions to punish the defaulters.
In hill and mountainous regions, people built diversion channels like the ‘guls’ or ‘kuls’ of the Western Himalayas for agriculture.
‘Rooftop rain water harvesting’ was commonly practiced to store drinking water, particularly in Rajasthan.
In the flood plains of Bengal, people developed inundation channels to irrigate their fields.
In arid and semi-arid regions, agricultural fields were converted into rain fed storage structures that allowed the water to stand and moisten the soil like the ‘khadins’ in Jaisalmer and ‘Johads’ in other parts of Rajasthan.
Bamboo drip irrigation system in Meghalaya was present.

Practices in India for Water Management ?

Tamil Nadu is the first state in India which has made roof top rainwater harvesting structure compulsory to all the houses across the state. There are legal provisions to punish the defaulters.
In hill and mountainous regions, people built diversion channels like the ‘guls’ or ‘kuls’ of the Western Himalayas for agriculture.
‘Rooftop rain water harvesting’ was commonly practiced to store drinking water, particularly in Rajasthan.
In the flood plains of Bengal, people developed inundation channels to irrigate their fields.
In arid and semi-arid regions, agricultural fields were converted into rain fed storage structures that allowed the water to stand and moisten the soil like the ‘khadins’ in Jaisalmer and ‘Johads’ in other parts of Rajasthan.
Bamboo drip irrigation system in Meghalaya was present.