He is a member of the Meghalaya Legislative Assembly from Chokpot Assembly constituency, which is reserved for Scheduled Tribe community, in South Garo Hills district.
He won the 2023 Meghalaya Legislative Assembly election representing National People's Party.
[2] Sangma is from Ruga Adinggre village, Dimapara post, Gasuapara PS, South Garo Hills district, Meghalaya.
He completed his Bachelor of Arts degree in 2013 at a college affiliated with North Eastern Hill University, Shillong.
He polled 9,503 votes and defeated his nearest rival, Nikman Ch.