Following the conclusion of state assembly elections, exit polls released by various agencies on April 29, 2021, projected the Bharatiya Janata Party (BJP) and its allies to secure a majority in Assam and the Congress-led United Democratic Front (UDF) to form the government in Kerala. In contrast, projections for West Bengal and Tamil Nadu showed significant divergence among pollsters, indicating an uncertain outcome ahead of the official vote count slated for May 2, 2021.

Multiple agencies consistently indicated a clear majority for the BJP and its alliance partners in Assam. If confirmed by the final count, this outcome would mark a significant success for the party in solidifying its presence in the northeastern region, where it has sought to expand its political footprint. Similarly, in Kerala, most exit polls predicted a comfortable victory for the UDF, signaling a potential shift from the incumbent Left Democratic Front (LDF), in line with the state's historical trend of alternating governments.

The situation in West Bengal appeared more contested according to exit poll data. Several surveys suggested a close contest between the ruling Trinamool Congress (TMC) and the BJP, which mounted a vigorous campaign to establish a strong presence in the state. While some projections gave a slight edge to the TMC, others indicated gains for the BJP, with a few even suggesting the possibility of a hung assembly or a narrow majority for either major contender. This divergence underscored the intense electoral battle witnessed across West Bengal's 294 constituencies.

A similar lack of consensus was observed in Tamil Nadu, which went to the polls for its 234-member assembly. Exit polls presented differing scenarios regarding the performance of the Dravida Munnetra Kazhagam (DMK) alliance, led by M.K. Stalin, and the All India Anna Dravida Munnetra Kazhagam (AIADMK) alliance, which contested in alliance with the BJP. While some pollsters indicated a lead for one alliance, others projected a tighter race, leaving the final outcome uncertain until official results are declared.

Exit polls are conducted by surveying voters immediately after they cast their ballots and are designed to provide an early indication of electoral trends and potential outcomes. While they offer a snapshot of voter sentiment on polling day, they are not always infallible and can differ from the final results due to methodological variations, sample size limitations, and the dynamic nature of voter responses. The Election Commission of India typically prohibits the release of exit polls until the final phase of polling concludes across all states.

The results of these four state elections are significant for the national political landscape, offering insights into regional political currents and the performance of major national parties. A confirmed victory for the BJP in Assam would reinforce its regional dominance, while a Congress-led UDF win in Kerala would provide a boost to the national opposition party. The highly contested outcomes projected for West Bengal and Tamil Nadu, if verified by official counting, would reflect strong regional dynamics and could influence future political alignments. All attention is now focused on May 2, 2021, when the official votes will be tallied, providing the definitive mandate of the electorate.