Rainwater harvesting is a viable alternative both socio-economically and economically. Support the statement with three examples.

Unlike multipurpose river valley projects, rainwater harvesting is considered a viable alternative both socio-economically as well as economically. This could be justified with the following examples:

1. People are already aware of their local ecological conditions and rainfall pattern. So they do not face any trouble in planning the utilization of the rainwater.

2. It is more environmentally friendly as compared to large multipurpose projects.

3. Economically, rainwater harvesting is a cheaper option.

4. It doesn’t involve rehabilitation of people thus avoiding disruptions in their lives.