What is rooftop rainwater harvesting system ? In which state is it compulsory to follow this system ?
(1) Rooftop rainwater harvesting means the rainwater that falls on the sloping roofs of houses is taken through pipe into an underground tanka (circular holes in the ground), built in the main house or in the courtyard. (2) In the semi-arid and arid regions of Rajasthan, particularly Bikaner, this practice was followed. (3) Roof top rainwater harvesting is the most common practice in Shillong, Meghalaya. Tamil Nadu is the first and the only state in India which has made rooftop rainwater harvesting structure compulsory to all the houses across the state. There are legal provisions to punish the defaulters.
