The three streams are known as Bindu Khola, Dudh Pokhri and Jaldhaka that originates from the Kupup lake, a small glacial lake in Sikkim.
Veined by mighty rivers like the Teesta, Torsa, Jaldhaka, Raidak, Dyna, Neora, Sankosh etc. this piece of land has been aptly named as the land of 'Tea, Timber and Tourism'.