Boko-Chaygaon Assembly constituency is one of the 126 constituencies in the Assam Legislative Assembly, a Scheduled Tribes (ST) reserved seat created in the 2023 delimitation by merging the former Boko and Chaygaon seats in Kamrup district. It falls under the Gauhati Lok Sabha constituency and covers a rural area of approximately 742 square kilometres with around 2.15 lakh registered electors across 245 polling stations.
The main political parties in Assam include the Bharatiya Janata Party (BJP), Congress, Asom Gana Parishad (AGP), All India United Democratic Front (AIUDF), Bodoland People's Front (BPF), United People's Party Liberal (UPPL), and the Communist Party of India (Marxist) (CPM).
In the 2021 Assam Assembly elections, both predecessor constituencies were won by the Indian National Congress. In Boko, INC's Nandita Das won decisively with 1,20,613 votes — a 52,466-vote margin over AGP's Jyoti Prasad Das (68,147 votes). In Chaygaon, INC's Rekibuddun Ahmed secured victory with 93,864 votes, beating AGP's Dr. Kamala Kanta Kalita (65,820 votes) by 28,044 votes. The combined 2021 mandate for Congress across both seats makes this a key defence in 2026: Congress's Ramen Singh Rabha contests against BJP's Raju Mech for the merged seat.
The 2026 Assam Assembly elections will test Chief Minister Himanta Biswa Sarma's BJP-led government, which swept to power with a comfortable majority in 2021. With the opposition Congress-AIUDF combine seeking to consolidate anti-incumbency sentiment, every constituency will be a crucial battleground in deciding whether the state returns a second consecutive BJP government.