Teesta-3 dam: An expert committee of the Environment Ministry has recently recommended reconstruction of Teesta-3 dam in Sikkim.
o Turns southeast through Sivok Khola pass onto West Bengal plains.
o Previously flowed into Padma River (Ganga), but since 1787 flows eastward, joining Jamuna River near Chilmari (Bangladesh).
o Left-Bank: Lachung Chhu, Chakung Chhu, Dik Chhu, Rani Khola, Rangpo Chhu.
o Right-Bank: Zemu Chhu, Rangyong Chhu, Rangit River.