As a member of the Bharatiya Janata Party, Hazarika contested in the 1998 Indian general election from Lakhimpur, finishing third with 1,30,298 votes (19.41pc) behind second-placed Arun Kumar Sarmah of the Asom Gana Parishad (1,48,012 votes, 22.05pc). Hazarika stood as a candidate in Lakhimpur again in 1999, finishing third with 1,84,533 votes (24.81pc) behind second-placed Sarbananda Sonowal of the Asom Gana Parishad (2,01,402 votes, 27.08pc). In 2004, Hazarika ran as the Bharatiya Janata Party's candidate for a third consecutive occasion, finishing third with 1,69,123 votes (21.1pc) behind second-placed Ranee Narah of the Indian National Congress (2,72,717 votes, 34.1pc). On December 20, 2023, Hazarika joined the Indian National Congress.[1][6] In 2024, Hazarika was nominated as the Indian National Congress candidate for Lakhimpur in the 2024 Indian general election.[7][8] In the general elections, Hazarika received 4,61,865 votes (38.13pc), finishing second behind the Bharatiya Janata Party candidate, Pradan Baruah, who received 6,63,122 (54.75pc) votes.[9]