Jaldhaka River, also called De-chu, is one of the trans-boundary rivers, which originates from the Himalayas
of southeast Sikkim
and flows through Jalpaiguri
, Muthabhana, Samsing
(Jaldhaka) in West Bengal
. It is one of the tributaries of the Teesta River and marks the India – Bhutan border. At Muthabhana, this river flows above danger level.