After the formation of Gorkhaland Territorial Administration (GTA) in 2011 following the arrival of Trinamool Congress government, elections were conducted in 2012.
On 20 September 2017, the Government of West Bengal reconstituted the GTA and appointed rebel GJM leader Binoy Tamang as its chairperson.
Before 2019 Darjeeling Assembly bye-election, Tamang became the TMC candidate and subsequently resigned as its chairman.
On 9 September 2021, Thappa left GJM and created BGPM at Darjeeling Gymkhana.
[4][5] GJM of Tamang-faction MLA Ruden Sada Lepcha joined BGPM and became the vice-president of the party.