One of the major reasons the multi-purpose projects were opposed was that it could not complete the purpose it was built for.

1) One of its purposes was to avoid floods. Instead, it is found that these multi-purpose projects aggravated the flood water which led to the loss of lives and soil erosion.

2) It disturbed the lives of people living by rehabilitating them.

3) It does not satisfy the socio-economic principles whereas the rainwater harvesting system does.

4) Environmentally rainwater harvesting systems are considered more environmentally friendly compared to multi-purpose projects.