Dipor Bil, Freshwater lake and Ramsar site in Kamrup Metropolitan district, India

Dipor Bil is a permanent freshwater lake in a former channel of the Brahmaputra River, southwest of Guwahati. Its open grey water is dotted with floating vegetation and thin stakes, with mudflats and mats of aquatic plants along the near edge. The Basistha and Kalmani rivers feed it, and the Khonajan channel drains it north to the Brahmaputra.

In the late 1980s, the regional government recognized the ecological value of this area and created a protected zone. International recognition followed when the site gained Ramsar status, broadening its conservation importance.

Several small villages line the edges of this wetland, where families have long practiced fishing and gathered resources from the water as their way of life. The everyday activities of local residents shape how the place looks and functions today.

Visitors can reach this wetland through various local routes, with multiple entry points distributed around the lagoon. The driest months offer better conditions for viewing wildlife, as water levels drop and animals become more visible.

Dipor Bil is the only Ramsar site in Assam, designated in November 2002, and BirdLife International lists it as an Important Bird Area. Counts of up to 19,000 water birds have been recorded in a single day, among them spot-billed pelicans, greater and lesser adjutants and Baer's pochards.