In Uttar Pradesh, number of endangered Gangetic Dolphins has increased to 671. The announcement was made by the State Chief Minister Akhilesh Yadav at the end of a three-day census drive which concluded on Sunday. AIR correspondent reports that World Wildlife Fund-India's headcount had put the number of river dolphins in the state at around 600 in 2005. Since then, no comprehensive census of the mammal was done.