It has ruled the Sikkim state from 1994 to 2019 with Pawan Kumar Chamling as the chief minister.

In May 2016, after the BJP led NDA formed its first government in Assam, a new alliance called the North-East Democratic Alliance (NEDA) was formed with BJP leader Himanta Biswa Sarma as its convener.

[4] The Chief Ministers of the north eastern states of Sikkim, Assam, Manipur, Arunachal Pradesh and Nagaland too belong to this alliance.

[5] Pawan Kumar Chamling resigned as CM after 2019 Sikkim Legislative Assembly election as former member Prem Singh Tamang's Sikkim Krantikari Morcha party formed the government by winning 17 seats out of 32.

Later, its only MLA defected to Sikkim Krantikari Morcha, thus reducing its strength in the legislative assembly to zero.