Question

what do you mean by multipurpose river valley project

Answer 1

Multi-purpose projects are those projects that are aimed at fulfilling many purposes like-

irrigation
Generating hydroelectricity
flood control
navigation
water supply to people
Recreational purpose

Example- Damodar valley , and Narmada River Projects

Answer 2

multipurpose river valley project are meant to tackle various problems associated with river valleys in an integrated manner

the objective of multipurpose valley project are

to control flood
check soil erosion
provide water for irrigation
water for drinking purposes
provide inland navigation