The first population estimation of riverine dolphins in India has revealed the presence of 6,327 dolphins in the Ganga, Brahmaputra and Indus river systems, according to a government report published on Monday. As part of 'Project Dolphin', a comprehensive survey was conducted for the first time to estimate the population of river dolphins across eight states -- Uttar Pradesh, Bihar, Jharkhand, Rajasthan, Madhya Pradesh, West Bengal, Assam and Punjab. Uttar Pradesh has the highest number of dolphins at 2,397, followed by Bihar 2,220, West Bengal 815, Assam 635, Jharkhand 162, Rajasthan and Madhya Pradesh 95, and Punjab 3, the report said. The Ganges river dolphin, known for its unique features, is found in the Ganga-Brahmaputra-Meghna river system and its tributaries across India, Bangladesh, Nepal, and Bhutan. A small population of the Indus river dolphin, a close relative of the Ganges river dolphin, is found in the Indus river system in India. According to the report titled ...