The Relli, a tributary of Teesta river, is a small Himalayan river in the Indian states of Sikkim and West Bengal, flowing near Kalimpong.[1][2] The source of the Relli lies in between the Alagara - Lava forest range at an elevation of 2,400 metres (8,000 ft) known as Tiffin Dara and ends at 800 ft, confluence with the Teesta .[3] The river runs less than 10 kilometres (6 mi) from central Kalimpong, separated by Deolo Hill.[2][4] Fed by its main tributaries, Khani River and Pala River, the Relli flows into the Teesta River about 32 kilometres (20 mi) south of central Kalimpong.[2]
The northerly slopes along the Relli in Upper Echhay Sherpagaon, in Sikkim, are home to a cluster of some 50 Sherpa households.[5] The village of Relli is located on its banks downriver from Kalimpong, connected to the city by road and trails.[6]
Rinchingpong, a tourist area situated in the northern part of Kalimpong, overlooks the Relli. The Relli is a popular weekend destination among Kalimpong locals for attractions including local cuisine, picnicking spots, boating, and recreational fishing. A Wayside Inn managed by the West Bengal Tourism Department is located nearby.[1][2][7]
A fair is held annually at the Relli on the Makar Sankranti holiday (January 14).[7]
Gompas, or monasteries, lie near the river, with an overlook at Jelep La Viewpoint.[8]
Bhutan House, in West Bengal, also overlooks the Relli River below a deep valley.[9]