Dudhnoi Assembly constituency is one of the 126 constituencies in the Assam Legislative Assembly, a Scheduled Tribes (ST) reserved seat formerly listed as Dudhnai before the 2023 delimitation updated the name. It is located in Goalpara district in lower Assam and falls under the Dhubri Lok Sabha constituency. The constituency covers a rural, agrarian terrain with a predominantly tribal electorate.
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 (contested as Dudhnai), BJP candidates dominated, continuing the NDA's strong run in lower Assam's ST reserved seats. The 2026 contest sees BJP's Tankeshwar Rabha against Congress's Kishore Kumar Brahma for what is expected to be a closely fought tribal constituency in the Goalpara belt.
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.