Define the term multi-purpose river valley project. State any four objectives of multi-purpose river valley projects

Multi-purpose river valley projects are meant to tackle various problems associated with river valleys in an integrated manner.
The objectives of Multi-purpose river valley projects are :
(i) to control flood.
(ii) check soil erosion.
(iii) provide water for irrigation.
(iv) water for drinking purposes.
(v) generate electricity for industries, villages and cities.
(vi) provide inland navigation.
(vii) encourage tourism and recreation.
(viii) preservation of wildlife.
(ix) development of fisheries.
Examples: Bhakra Nangal, Hirakud, Kosi, Chambal, etc.