Chakma submitted his resignation as the senior adviser of the Chakma Autonomous District Council Congress Committee (CADCCC) and as primary member of the Congress party.
He sent the copies of his resignation letter to AICC President Sonia Gandhi and Mizoram Pradesh Congress Committee (MPCC) president Lal Thanhawla.
Chakma first contested the State Assembly polls in 1987 from Chawngte seat and was elected. He again won from the constituency in 1989 and was sworn in as a Minister of State on January 25, 1989 to become the first-ever Chakma Minister in the State. He was again inducted as Minister of State after winning the Assembly polls in 1993.