[1][2][3][4] This constituency has been reserved for Scheduled Tribes (ST: Bhutia, Lepcha and Sherpa) since 2009.
In the 2019 Sikkim Legislative Assembly election, Kunga Nima Lepcha of SKM won in both Shyari and Gangtok constituencies, so he relinquished Gangtok seat.
In the by-election, ruling SKM didn't send their candidate to Gangtok, and supported opposition BJP.
Former ruling SDF participated in the Sikkim Legislative Assembly election as the opposition for the first time in 25 years.
As the result, Yong Tshering Lepcha of BJP defeated his nearest rival Delay Namgyal Barfungpa of SNPP.