(a) Dams are referred to as multi-purpose projects where the many uses of the impounded water are integrated with one another. Dams are now built not just for irrigation but for electricity generation, water supply for domestic and industrial uses, flood control and recreation.
(b) The objectives of the projects were as mentioned below:
(i) It would integrate development of agriculture and the village economy with rapid industrialisation and growth of the urban economy. It was thought that they would lead the nation to development and progress, overcoming the handicap of its colonial past.
(ii) These projects generate hydro-electricity. For example, the Bhakra-Nangal project water is being used for hydel power production
(iii) The projects are useful for irrigation as is the case of Bhakra project.
(iv) Flood control: These projects help in the control of floods. For example the Hirakud project in the Mahanadi basin integrates conservation of water with flood control.
(v) The other objectives are navigation, fish breeding, water supply for domestic and industrial uses and to encourage tourism.