Born in Sikkim, Gurung began his career at the Namchi Sports Hostel before joining the Sports Academy of Sikkim.[1] He then joined the Shillong Lajong academy in 2015. He was promoted to the first-team before the start of the 2016–17 I-League season.[1] He made his professional debut for the club on 15 February 2017 against East Bengal. He came on as an 82nd-minute substitute for Redeem Tlang as Shillong Lajong drew the match 1–1.[2]