Management of dominant environmental issues of water resources projects some case studies of projects in Orissa & Maharashtra

India has made a long journey in the field of irrigation by raising the irrigation coverage from 22.6 million ha in 1951 to 100 million ha in 2005. Consequently the food-grain production was raised from 50 million tons to 210 tons in above period. However from the past experience, it is seen that, construction of dam attracts a series of environmental problems in two distinct areas i.e., upstream of dam and downstream of dam.