How 2026 assembly polls have reordered India’s political map

On the morning of May 4, the first leads did not appear extraordinary. Counting centres across West Bengal, Tamil Nadu, Kerala, Assam and Puducherry reported the usual early volatility. Postal ballots distorted trends. Party spokespersons and analysts remained cautious as margins fluctuated. By noon, the caution had thinned and then evaporated. It was no longer suspense, but the realisation that something larger had unfolded.

The political earthquake that followed brought down the stalwarts of Indian politics in three states simultaneously, signalling a generational shift whose tremors will be felt for years. In scale and surprise, the results surpassed most exit polls. If these three states were countries, the changes would recall the regime-altering upheavals that have swept India’s neighbourhood—Sri Lanka, Bangladesh and Nepal—in the last two years.

The BJP won 207 seats in West Bengal, ending 15 years of Mamata Banerjee’s rule. She had a humiliating defeat in her constituency, Bhabanipur. In Tamil Nadu, actor C. Joseph Vijay’s Tamilaga Vettri Kazhagam won 108 seats in its maiden contest, destroying the DMK and sending outgoing chief minister M.K. Stalin out of both power and Kolathur, his constituency. In Kerala, the Left Democratic Front (LDF) recorded one of its worst performances in living memory—13 of its 20 ministers lost their seats, ending Pinarayi Vijayan’s tenure and ensuring that, for the first time in five decades, there was no left government in any Indian state.

Even as the mighty fell elsewhere, Assam told a different story. Himanta Biswa Sarma helped the National Democratic Alliance win 102 seats for the first time in the state’s history, handing the BJP a historic third consecutive term. In Puducherry, N. Rangaswamy’s All India N.R. Congress-led NDA, which included the BJP and the AIADMK, won 18 of 30 seats.

Individually, each outcome can be explained within familiar frameworks of state politics. Taken together, they point to a reordering of India’s political map. The BJP and its allies now have 22 of 31 chief ministers across states and Union territories, covering over 70 per cent of the country’s geographic area and population. It is a footprint without precedent in post-independence Indian politics, except perhaps during the Congress’s peak decades of the 1950s and 1960s. For the opposition, these polls are an urgent call to pool resources or get decimated in the run-up to the 2029 Lok Sabha polls.

Coming two years into the third tenure of Prime Minister Narendra Modi’s NDA government, the Bengal victory is a prize for which the party had toiled for years, and an answer to the wound that had lingered since 2024. What the freshly appointed BJP president Nitin Nabin had described as kasak—a lingering ache—after the Lok Sabha results has now been addressed. The party has comprehensively won every single state election since then (barring this year’s Kerala and Tamil Nadu).

“Looking back, the 2024 Lok Sabha results seem more like a temporary setback,” said Rahul Verma, political scientist and fellow at the Centre for Policy Research, Delhi. “The BJP became overconfident and complacent. There were narratives around the Constitution that generated backlash. The BJP drew the correct lessons from it, while the opposition drew the wrong ones. We then saw the BJP come from behind and win state after state— in Haryana, nobody was giving them a chance; same in Maharashtra; and now West Bengal.”

For Modi, Bengal was the missing piece—one he said marked “a new chapter” in the state’s destiny, a future defined by “development and not fear, change and not revenge”.

THE BENGALI WARFARE

Bengal offers significant insights into BJP’s strategy and the shift in the country’s politics, as a state known for its left-liberal roots made a decisive shift to hindutva-coloured nationalism.

But it was not won in a single day, or a single election cycle. The BJP’s dominance of eastern India has been assembled, state by state, over two years. In June 2024, it won Odisha for the first time, defeating the Naveen Patnaik government that had seemed permanent. In April 2025, Bihar got its first BJP chief minister in Samrat Chaudhary when Nitish Kumar stepped aside on his election to the Rajya Sabha. And now, it has West Bengal.

The BJP now has complete dominance of the east—Bihar, Bengal and Odisha—articulated through the slogan of ‘Anga, Banga, Kalinga’, evoking the ancient kingdoms that once defined the subcontinent’s eastern civilisation. It is not merely a political slogan but a statement of strategic and cultural intent.

The vote-share arithmetic tells part of the story. The BJP garnered 45.84 per cent of the popular vote against the Trinamool Congress’s 40.80 per cent. In those five percentage points lay a gulf of 127 seats. But the numbers alone do not explain the outcome—the organisation behind them does.

Behind the BJP’s eastern dominance stands a triumvirate: Union Home Minister Amit Shah, Union Environment Minister Bhupender Yadav and BJP general secretary Sunil Bansal. While Shah and Yadav are veterans of most high-profile state campaigns, Bansal works behind the scenes as an organisational powerhouse. Shah’s imprint was visible everywhere—from bringing former state unit chief Dilip Ghosh back into the party machinery to persuading Suvendu Adhikari to contest against Mamata in Bhabanipur. Bansal, who had scripted the BJP’s landmark 2017 Uttar Pradesh victory before being posted to Bengal in 2022, brought his hallmark micromanagement to the state. He shifted base months in advance, expanded the party’s presence across over 65,000 booths and significantly purged Trinamool turncoats not just from operational positions but from the candidate list, a departure from previous polls.

The BJP’s strategic shift after the 2021 assembly polls was equally crucial. Its slogans moved away from ‘Jai Shri Ram’ to local invocations of presiding deities, Kali and Durga. Local workers were fielded as candidates, while ideological leaders from Uttar Pradesh and Bihar worked behind the scenes, so that Trinamool’s attack of the BJP using “outsiders” did not hold.

The campaign was built on four levers: doubling the Trinamool’s welfare offer for women through the Matrishakti Bharosa Card; the 7th Pay Commission for government employees; targeted messaging on law and order linked to specific crimes against women; and a sustained drumbeat on illegal immigration that Shah ran from the campaign’s opening rally to its last.

“The verdict reflects a clear rejection of the Trinamool’s politics and governance model,” said BJP spokesperson Tuhin Sinha. “Women voted against the party in large numbers. Welfare schemes alone cannot win elections if basic dignity and safety are not ensured.”

The BJP also reversed the Trinamool’s core constituency—women—by making their grievances the face of the campaign. Rekha Patra, a victim of the Sandeshkhali case, won her seat. Ratna Debnath, whose daughter was a victim in the R.G. Kar hospital case, secured a strong victory. A domestic worker, Kalita Majhi, who faced harassment for supporting the BJP, also won.

Hindu consolidation was another defining feature, as polarisation pushed Muslim votes towards the Trinamool, Congress and allied parties while Hindu voters rallied behind the BJP. In Assam, Sarma’s aggressive hindutva positioning, focused on the outsiders debate, produced a telling result: 18 of Congress’s 19 winning MLAs are Muslim.

“The recent electoral victory marks a historic turning point,” said Jayati Banerjee, associate professor of political science at Women’s Christian College, Kolkata. “Religion has become a major factor unlike in previous elections. But Mamata’s third term was also marked by severe failures—in corruption and in the handling of the teacher recruitment issue. Her insensitivity to protesting teachers deeply hurt Bengali sentiment.”

The opposition disputes the verdict’s legitimacy. Mamata dug in her heels, claiming that a 100 of her seats had been stolen, starting with the SIR process. “The SIR process was brought in simply to determine electoral outcomes by negating votes,” said Avijit Anshul, Congress spokesperson. “You are disrupting the very foundation of democracy—the popular will. It is ominous and dangerous.”

GEN-Z ANGST AND WELFARE PARADOX

What connects Bengal with Tamil Nadu is the scale of change, and a common underlying cause: overlooking of the young and aspirational voters in the messaging.

In Bengal, the school recruitment scam, which led to the cancellation of approximately 25,000 jobs, and lack of jobs and industry precipitated the anger beyond the ideological reasoning.

The first-time voter and Gen-Z cohort had no allegiance to Mamata’s legacy or the left’s agitation politics “Many promising young Bengalis had been forced to migrate to Delhi, Mumbai or Chennai for work. They wanted to stay, but with no choice left, they were forced to migrate. So, they voted accordingly,” argued Jayati.

In Tamil Nadu, the dynamic was different in origin but similar in force. Vijay’s entry into politics was initially treated as another instance of a film star testing electoral waters. But within two years of founding his party in February 2024, he achieved what others could not—breaking the Dravidian duopoly that had governed Tamil Nadu without interruption since 1967.

“For a long time, there has been a simmering dissatisfaction in Tamil Nadu,” said P. Ramajayam, academic at Bharathidasan University, Tiruchirapalli. “It was not visible during campaigns or roadshows but it existed across sections of society. Despite the DMK and the AIADMK’s welfare politics, the last rung of beneficiaries felt left out of power. Voters sought leaders who could mobilise and amplify their voices, blending material benefits with social connections that Dravidian parties overlooked. The youth played a critical role—whenever Vijay appeared, they turned up in large numbers. They influenced families and neighbours. The impact, when it came, was quite startling.” Defections and minor alliance frictions aided TVK marginally.

The comparison that resonates is with AIADMK founder M.G. Ramachandran aka MGR, who came to power in 1977 and reshaped the state’s political landscape. Like MGR, Vijay’s support base skews towards the young: most of his voters and rally-goers are under 40. And like MGR, he has not broken with the Dravidian tradition so much as appropriated it—DMK founder C.N. Annadurai and MGR were constant companions in his campaign posters, his rhetoric saturated with references to 1967 (when the DMK first came to power) and 1977.

Ironically, Mamata, Stalin and Vijayan had each built their political standing on welfare delivery. They excelled in extending benefits to the marginalised and it worked, until it didn’t.

Vijay’s manifesto pushed the grammar of Dravidian welfarism to its outer limits: Rs2,500 a month for women heads of households, Rs4,000 for unemployed graduates, free gas cylinders and gold coins and silk saris for every bride. Vijay rebooted the Dravidian model rather than abandoning it, and voters rewarded him for promising more of what the incumbents had promised but failed to fully deliver.

The BJP applied the same logic in Bengal. In 2021, it attacked the Trinamool’s Lakshmir Bhandar scheme; the attack failed badly. In 2026, it promised twice the amount.

“Welfare is something you must provide—without it, governing becomes very difficult,” said political scientist Verma. “But there are other things people expect apart from largesse. Look at the YSRCP’s loss in Andhra Pradesh, the BJD’s loss in Odisha, the AAP’s loss in Delhi—all fairly welfarist governments. The common thread is party organisation. Anger is not always directed at the government or the leader. Sometimes, it is about what party workers are doing at the ground level. The Trinamool was seen as extractive and coercive at the local level. They bore the consequences.”

In Tamil Nadu, the dissatisfaction operated simultaneously across social strata, said Ramajayam. Among lower-income groups, welfare had not translated into meaningful social mobility. Among intermediate castes, dalits and minorities, there was frustration at exclusion from power structures. Among the urban middle class, there was fatigue with a political order unchanged for six decades.

In Kerala, the same forces were at work. Despite the LDF’s welfare record, there was palpable dissatisfaction with Vijayan and the party at the grassroots. “Message from Kerala and also Tamil Nadu and Bengal, which holds for rest of the country as well, is that parties are not going for leadership renewal. The regional parties are seen as dynastic,” said Verma. He added that the DMK had never returned to power consecutively since 1977, which means it does something that hinders its back-to-back victory, unlike the AIADMK that had two consecutive terms.

If Bengal, Tamil Nadu and Kerala were tales of incumbents undone, Assam told a different story—one of incumbency rewarded. Sarma’s third consecutive term reflects a pro-incumbency heightened by identity politics, which the Congress failed to break. Sarma, who left the Congress in 2014 after sensing that mentor Tarun Gogoi was grooming his son Gaurav as his successor, has now defeated Gaurav twice. This time, Gaurav not only failed to dislodge Sarma but also lost his seat in Jorhat by 23,000 votes.

“The Assam election became a choice between governance and identity-based politics,” said BJP’s Sinha. “The BJP’s record on infrastructure, development and controlling demographic changes resonated with voters.” Where other BJP victories were built on breaking down incumbents, Assam’s was built on consolidating one.

THE ROAD TO 2029

The implications of May 4 extend well beyond the four states and a Union territory. With the BJP winning Bengal, it will have to wait a just little longer to get a two-third majority in the Rajya Sabha, a crucial barrier for enacting bigger and ideologically driven legislations.

The eastern dominance also serves a vital arithmetic purpose for 2029. In the last Lok Sabha election, the BJP lost significant ground in the Hindi heartland. When 2029 comes and the party needs to cross the majority mark on its own, Odisha, Bengal and Bihar—they together account for 103 Lok Sabha seats—will be central. Of those, the BJP won only 44 in 2024.

But before 2029 comes a far bigger test—2027, when Uttar Pradesh, Uttarakhand, Gujarat, Goa, Punjab, Himachal Pradesh and Manipur go to polls alongside the presidential election. For the presidential vote, each MLA’s ballot is counted. The party’s impressive run of state victories since 2022 places it in a comfortable position to elect its candidate without leaning too heavily on allies.

Unlike 2026, which was fought largely on the opponents’s home turf, 2027 will be contested in BJP-governed states. “Going forward, elections will remain competitive,” cautioned Verma. “Few would have predicted such a decisive BJP victory in West Bengal six months ago. Indian electoral politics remains fluid. That said, the defeat of three major opposition players will strain their narrative and organisational strength, making it harder to present a credible alternative.”

The good show in Bihar and Bengal is likely to help the BJP in Uttar Pradesh, and make things competitive for the opposition parties like the Samajwadi Party and the Congress.

As senior generation of regional leaders diminish, the question of what comes next for the opposition falls to younger leaders, some of whom are already active but yet to taste success. Going ahead the focus would remain on the younger lot like Abhishek Banerjee, Mamata’s nephew, who had run the Bengal campaign. At 38, he remains the Trinamool’s undisputed number two but his authority is no longer unquestioned.

In the Hindi heartland, Akhilesh Yadav, Samajwadi Party chief and Uttar Pradesh’s most prominent opposition leader, has an uphill task after the Bengal results. He would need not just the support of the Congress and pooling of opposition resources but also a better narrative than one hinged on Yogi Adityanath to be able to make a dent. Another leader waiting in the wings is Tejashwi Yadav, 36, the Rashtriya Janata Dal chief and former Bihar deputy chief minister, who had campaigned in Bengal for Mamata. Bihar’s installation of its first BJP chief minister happened on his watch in 2026. The question for Tejashwi is whether he can rebuild an RJD coalition in Bihar against a BJP that now governs the state directly. Together with Udhayanidhi Stalin in Tamil Nadu, these leaders must rework their political grammar to remain relevant nationally and mount a credible challenge before 2029.

“The message from these elections is clear: political culture matters,” said Sinha. “The Trinamool now faces the same moment of introspection that the RJD and the Samajwadi Party have faced after losing power. Whether they draw the right lessons will define the next chapter.”

The opposition, which has been hit hard in Bengal and Assam, has found some solace in Kerala and Tamil Nadu. With Kerala, the Congress gets a fourth state under its direct control.

The verdict may have increased the challenges for the INDIA bloc, but has also opened doors for better coordination. After the results, Mamata announced that she would work to strengthen the alliance. The call from Rahul Gandhi that preceded the announcement was the first visible act of consolidation. But the Trinamool had for years maintained an independent strategy in Parliament, and the AAP, which faces an increasingly assertive BJP in Punjab, has been largely absent from the picture. A bigger focus on the INDIA bloc, with Rahul leading the charge, could be seen in the coming days.

“We have to go back, organise ourselves and think politically,” said Congress’s Anshul. “Kerala has shown it is possible—V.D. Satheesan thought politically and organised [in Kerala]. We have to do the same everywhere. India is ripe for change.”