In Boko-Chaygaon, Raju Mesh of BJP secured a landslide victory, polling 1,07,113 votes and defeating Congress candidate Ramen Singh Rabha by a margin of 59,554 votes. NPP’s Ganseng B Sangma finished a distant third with 7,092 votes, as the constituency delivered an emphatic mandate in favour of BJP.
Boko-Chaygaon (ST) was a Scheduled Castes reserved assembly constituency (No. 48) in Assam's Kamrup district, part of the Gauhati Lok Sabha constituency, abolished and renamed to Boko–Chaygaon in the 2023 delimitation.
In 2026, assembly elections BJP fielded Raju Mech against Congress’s Ramen Singh Rabha.
INC's Nandita Das won decisively in 2021 with 120,613 votes (58.82per cent share) and a 52,466-vote margin over AGP's Jyoti Prasad Das (68,147 votes). She also triumphed in 2016 with 69,986 votes (39.69per cent).
It covered a rural 742 sq km area including Boko thana (excluding Bongaon mouza), with literacy at 72.81per cent, 236,661 electors in 2021 (85,984 males, 84,350 females), and 245 polling stations. The new Boko–Chaygaon has ~215,240 voters, including 93,167 ST, 24,057 SC, and diverse minorities.
The estimated voter turnout in Boko-Chaygaon Assembly constituency of Assam was 84.49% till 7pm in comparison to 2021 which was 81.8%. Assam’s 2026 assembly elections recorded a historic voter turnout of 85.9% by evening on April 9, the highest since the state’s first polls in 1951, with large numbers of people turning out to vote despite rain. This marks the highest turnout in the state’s history, surpassing the previous highs of 84.67% in 2016 and 82.04% in 2021.
According to ED data, women recorded a voter turnout of 86.5% in the 2026 assembly elections, over a percentage point higher than men at 85.3%. This also marks the highest-ever female participation in the state.