The 2026 Assam assembly elections were contested on an altered political map shaped by the 2023 delimitation exercise, which redrew constituency boundaries across the state. This exercise reduced the number of Muslim-majority seats from 35 to 22, significantly reshaping traditional Muslim voter strongholds and influencing the outcome of the first assembly election held after the delimitation.
Impact on Representation
While the total number of assembly seats remained unchanged at 126, the delimitation had a clear effect on representation. The number of Muslim MLAs stayed below 25, while Hindu and tribal MLAs together crossed the 100 mark. Chief Minister Himanta Biswa Sarma had repeatedly stated that the delimitation would ensure representatives from indigenous communities held more than 100 of the 126 seats, while Muslims would be confined to around 22 seats. The post-election composition matched that projection.
Muslim Voter Dynamics
With Muslim voters remaining decisive in 22 constituencies after delimitation, the contest in those seats was largely expected to be between the Congress and the All India United Democratic Front (AIUDF). The opposition performed poorly overall, but Congress improved its position significantly within the Muslim-majority segment.
Redrawing of Constituencies
The delimitation exercise broke up several long-standing Congress strongholds with high concentrations of Muslim voters in Lower, Central, and Southern Assam. It reconfigured voter demographics for the first time in nearly five decades. Himanta said the exercise made indigenous communities the decisive factor in 103 seats, up from 90 earlier.
Party Strategies
This new electoral geography shifted the balance of power and compelled parties to recalibrate their strategies. In the run-up to the election, several Muslim leaders from the AIUDF joined the Asom Gana Parishad (AGP) to contest in many of the 22 seats where Muslim voters remained a decisive factor post delimitation. The BJP, which had limited prospects in these constituencies, hoped that the AGP, with its relatively secular image, could secure at least some of these seats for the National Democratic Alliance (NDA). However, the strategy did not yield significant results.
Expansion of Tribal Influence
The delimitation exercise reduced the weight of constituencies where Bengali-origin Muslim voters had long been electorally decisive, cutting the number of Muslim-majority seats from 35 to 22. At the same time, it expanded the influence of tribal communities: the number of seats reserved for Scheduled Tribes rose from 16 to 19, and Scheduled Caste reserved seats increased from eight to nine.
Political Context
Assam’s politics has long been shaped by the issue of migration from Bangladesh. Under the Assam Accord of 1985, March 25, 1971, was fixed as the cut-off date for citizenship. However, there have been allegations of continued illegal influx even after that date. The BJP has consistently argued that Assam’s politics should be determined by indigenous communities rather than migrant-origin Muslim populations.
The 2026 election results reflect this ongoing realignment, with the BJP-led NDA retaining power in Assam while the opposition struggled to make inroads in the redrawn constituencies.



