Diphu Lok Sabha constituency is one of the 14 Lok Sabha constituencies in Assam state in north-eastern India. The seat is reserved for scheduled tribes. In 2021, Diphu legislative assembly constituency had total 200287 electors. Total number of valid vote was 152294. Bharatiya Janata Party candidate Bidya Sing Engleng won and became MLA from this seat. He secured total 77032 votes. Indian National Congress candidate Sum Ronghang stood second with total 36504 votes. He lost by 40528 votes.