Explanation:

Teesta River, is a 315 km (196 mi) long river that rises in the eastern Himalayas, flows through the Indian states of Sikkim and West Bengal through Bangladesh and enters the Bay of Bengal. It drains an area of 12,370 km2 (4,780 sq mi). In India, it flows through North Sikkim, East Sikkim, Kalimpong district, Darjeeling District, Jalpaiguri District and the cities of Rangpo, Jalpaiguri and Mekhliganj. It joins the Jamuna River at Fulchhari in Bangladesh.