The Jaldhaka River is formed by the conjunction of three streams at Bindu. The three streams are known as Bindu Khola, Dudh Pokhri and Jaldhaka that originates from the Kupup Lake in Sikkim. The combined streams meet at Bindu to form the Jaldhaka River, thus forming a riverine boundary with India and Bhutan in the left bank.

Part of Dooars, West Bengal