[2] Mallabaruah currently holds the portfolio of Public Health Engineering and Department of Housing & Urban Affairs.

During his tenure as Chairman of ATDC he drew attention by holding the Filmfare award show in Assam, the first time that the show was held outside Mumbai in its 65-year history.

Baruah won the seat on an Indian National Congress ticket, beating the sitting Member of the Assam Legislative Assembly Alaka Sarma from the Asom Gana Parishad by about 9000 votes.

[5] In the legislative assembly election of 2021, Jayanta Malla Baruah won No.59 Nalbari Constituency as a member of the Bharatiya Janata Party, defeating Shri Pradyut Bhuyan of the Indian National Congress party.

[6] Baruah was later denied a ticket from a party to contest the 2016 Assam Legislative Assembly election.