He is an MLA of Sikkim Krantikari Morcha from Chujachen Assembly Constituency in Pakyong district.
Later, he completed Bachelor of Arts from Sikkim Government College, affiliated to University of North Bengal in 1987.
[3] Gurung started his political career with Sikkim Democratic Front and was first elected as an MLA from Chujachen Assembly Constituency in 2009.
He won the 2009 Sikkim Legislative Assembly election defeating Harka Raj Gurung of Indian National Congress by a margin of 5,963 votes.
He defeated Mani Kumar Gurung of Sikkim Democratic Front by a maring of 3,334 votes.