Swing Watch

Toss-up seats, TVK disruption zones, and projected flips by scenario

Live · Anti-inc 8.5/10 · Toss-up count adjusted

Toss-up Seats

TVK Disruption

Flips

Seats where the projected margin is within 3% — genuinely uncertain outcomes that could go either way on election day. The demographic-driven anti-inc pool split means high-youth/minority seats are more likely to be TVK-spoiler toss-ups, while older/rural seats are more likely to be straight NDA vs SPA contests.

Model Allocation of 53 Toss-up Seats

SPA

range 17–39

NDA

range 12–34

TVK

range 1–4

Key swing drivers:high anti-incumbency · 50 seatsfirst-time voter surge · 37 seatsAIADMK stronghold · 25 seatsTVK disruption · 7 seats

Under the Moderate scenario, our model allocates 28 of these 53 seats to SPA, 23 to NDA, and 2 to TVK as the most-likely outcome — but each of these seats is within a 3% margin, so the actual split could range from SPA 17–39 / NDA 12–34. The dominant swing driver across these seats is high anti-incumbency (50 seats), followed by first-time voter surge (37 seats). Turnout on election day — particularly among first-time and young voters — will be the decisive variable.

Point allocation reflects the model's most-likely winner in each seat given the projected vote shares. The ±range reflects the realistic uncertainty band — seats within 1% margin could plausibly flip with a 0.5pp shift in turnout or TVK vote share.

UTHIRAMERUR

KANCHIPURAM · Other

Toss-up

0.0% margin

38%

SPA

38%

NDA

17.5%

TVK

6.5%

Others

Anti-inc 7/10High SIR

BARGUR

KRISHNAGIRI · Central TN

Toss-up

0.1% margin

39.9%

SPA

40%

NDA

12.6%

TVK

7.5%

Others

Anti-inc 7/10AIADMK Strong

THIRUMAYAM

PUDUKKOTTAI · Other

Toss-up

0.1% margin

37.9%

SPA

37.8%

NDA

16.9%

TVK

7.4%

Others

Anti-inc 7/10AIADMK Strong

VIKRAVANDI

VILLUPURAM · North TN

Toss-up

0.2% margin

38.3%

SPA

38.5%

NDA

15.7%

TVK

7.5%

Others

Anti-inc 8/10

COLACHEL

KANNIYAKUMARI · Other

Toss-up

0.2% margin

37.5%

SPA

37.7%

NDA

18.2%

TVK

6.6%

Others

Anti-inc 7/10TVK Disruptive

SIRKALI

NAGAPATTINAM · Delta TN

Toss-up

0.3% margin

40.1%

SPA

39.9%

NDA

12.7%

TVK

7.3%

Others

Anti-inc 7/10AIADMK StrongHigh SIR

KARUR

KARUR · Central TN

Toss-up

0.3% margin

40%

SPA

40.3%

NDA

12.6%

TVK

7.1%

Others

Anti-inc 7/10AIADMK StrongHigh SIR

JAYANKONDAM

ARIYALUR · Central TN

Toss-up

0.4% margin

40.4%

SPA

40%

NDA

12.8%

TVK

6.8%

Others

Anti-inc 8/10AIADMK Strong

KALASAPAKKAM

TIRUVANNAMALAI · North TN

Toss-up

0.4% margin

38.6%

SPA

39%

NDA

15.6%

TVK

6.8%

Others

Anti-inc 7/10High SIR

TIRUPPATTUR

VELLORE · North TN

Toss-up

0.5% margin

40.4%

SPA

40.9%

NDA

11.6%

TVK

7.1%

Others

Anti-inc 7/10High SIR

THEAYAGARAYA NAGAR

CHENNAI · Chennai Metro

Toss-up

0.5% margin

33.8%

SPA

33.4%

NDA

25.6%

TVK

7.2%

Others

High SIR

COONOOR

TIRUPUR · Other

Toss-up

0.5% margin

37.9%

SPA

37.5%

NDA

17.5%

TVK

7.1%

Others

Anti-inc 6/10High SIR

ALANGULAM

TIRUNELVELI · Deep South

Toss-up

0.6% margin

32.6%

SPA

28.9%

NDA

32%

TVK

6.5%

Others

Anti-inc 8/10AIADMK Strong

TENKASI

TIRUNELVELI · Deep South

Toss-up

0.6% margin

38.9%

SPA

38.3%

NDA

16.2%

TVK

6.6%

Others

Anti-inc 7/10AIADMK Strong

KATTUMANNARKOIL

CUDDALORE · North TN

Toss-up

0.7% margin

38.8%

SPA

38.2%

NDA

15.7%

TVK

7.3%

Others

Anti-inc 8/10TVK Disruptive

SENDAMANGALAM

NAMAKKAL · Central TN

Toss-up

0.8% margin

39.5%

SPA

38.7%

NDA

14.9%

TVK

6.9%

Others

Anti-inc 6/10AIADMK StrongHigh SIR

TIRUPPUR (SOUTH)

NILGIRIS · Western TN

Toss-up

0.9% margin

36.8%

SPA

36%

NDA

19.6%

TVK

7.6%

Others

High SIR

VILAVANCODE

KANNIYAKUMARI · Other

Toss-up

0.9% margin

37.2%

SPA

38.1%

NDA

17.2%

TVK

7.5%

Others

Anti-inc 6/10TVK DisruptiveHigh SIR

RADHAPURAM

TIRUNELVELI · Deep South

Toss-up

0.9% margin

39.2%

SPA

38.3%

NDA

16%

TVK

6.5%

Others

Anti-inc 6/10AIADMK StrongHigh SIR

MAYILADUTHURAI

NAGAPATTINAM · Delta TN

Toss-up

1.1% margin

38.9%

SPA

37.7%

NDA

16.4%

TVK

Others

Anti-inc 7/10AIADMK StrongHigh SIR

PUDUKKOTTAI

PUDUKKOTTAI · Other

Toss-up

1.1% margin

39.9%

SPA

38.7%

NDA

13.9%

TVK

7.5%

Others

Anti-inc 7/10AIADMK StrongHigh SIR

COIMBATORE NORTH

COIMBATORE · Western TN

Toss-up

1.2% margin

33.3%

SPA

34.6%

NDA

25.1%

TVK

Others

Anti-inc 6/10High SIR

SALEM (NORTH)

SALEM · Central TN

Toss-up

1.2% margin

34.7%

SPA

35.9%

NDA

22%

TVK

7.4%

Others

Anti-inc 6/10AIADMK StrongHigh SIR

CHENGAM

TIRUVANNAMALAI · North TN

Toss-up

1.3% margin

38%

SPA

39.3%

NDA

15.4%

TVK

7.3%

Others

Anti-inc 8/10

MANAPPARAI

TIRUCHIRAPPALLI · Central TN

Toss-up

1.4% margin

35%

SPA

36.4%

NDA

21.6%

TVK

Others

Anti-inc 7/10High SIR

PADMANABHAPURAM

KANNIYAKUMARI · Other

Toss-up

1.4% margin

38.4%

SPA

37%

NDA

17.7%

TVK

6.9%

Others

Anti-inc 7/10

UDHAGAMANDALAM

TIRUPUR · Other

Toss-up

1.6% margin

38.8%

SPA

37.3%

NDA

17.1%

TVK

6.8%

Others

Anti-inc 6/10High SIR

HOSUR

KRISHNAGIRI · Central TN

Toss-up

1.7% margin

38.9%

SPA

40.6%

NDA

13.4%

TVK

7.1%

Others

Anti-inc 7/10AIADMK Strong

GUDIYATHAM

VELLORE · North TN

Toss-up

1.8% margin

34.8%

SPA

36.6%

NDA

21.1%

TVK

7.5%

Others

Anti-inc 6/10TVK DisruptiveHigh SIR

CUDDALORE

CUDDALORE · North TN

Toss-up

1.9% margin

37.3%

SPA

39.1%

NDA

16.3%

TVK

7.3%

Others

Anti-inc 7/10High SIR

PARAMAKUDI

RAMANATHAPURAM · South TN

Toss-up

1.9% margin

39.5%

SPA

37.6%

NDA

15.5%

TVK

7.4%

Others

Anti-inc 7/10AIADMK StrongHigh SIR

TIRUCHENGODE

NAMAKKAL · Central TN

Toss-up

1.9% margin

37.9%

SPA

39.8%

NDA

14.9%

TVK

7.4%

Others

Anti-inc 6/10AIADMK StrongHigh SIR

KATPADI

VELLORE · North TN

Toss-up

1.9% margin

35.5%

SPA

37.4%

NDA

20.4%

TVK

6.7%

Others

Anti-inc 6/10High SIR

VELLORE

VELLORE · North TN

Toss-up

2.0% margin

36.1%

SPA

34.1%

NDA

23%

TVK

6.8%

Others

Anti-inc 6/10TVK DisruptiveHigh SIR

THIRUVIDAMARUDUR

THANJAVUR · Delta TN

Toss-up

2.0% margin

41.2%

SPA

39.3%

NDA

13%

TVK

6.5%

Others

Anti-inc 8/10AIADMK Strong

ANTHIYUR

ERODE · Western TN

Toss-up

2.0% margin

34.8%

SPA

36.8%

NDA

21.7%

TVK

6.7%

Others

Anti-inc 7/10AIADMK StrongHigh SIR

VILLUPURAM

VILLUPURAM · North TN

Toss-up

2.1% margin

39.6%

SPA

37.5%

NDA

15.7%

TVK

7.2%

Others

Anti-inc 7/10High SIR

ANNA NAGAR

CHENNAI · Chennai Metro

Toss-up

2.1% margin

36.8%

SPA

21.5%

NDA

34.8%

TVK

6.9%

Others

Anti-inc 6/10High SIR

ANAIKATTU

VELLORE · North TN

Toss-up

2.2% margin

35.4%

SPA

37.7%

NDA

19.6%

TVK

7.3%

Others

Anti-inc 6/10High SIR

NAGAPATTINAM

NAGAPATTINAM · Delta TN

Toss-up

2.2% margin

39.9%

SPA

37.7%

NDA

15.5%

TVK

6.9%

Others

Anti-inc 6/10AIADMK StrongHigh SIR

ARIYALUR

ARIYALUR · Central TN

Toss-up

2.2% margin

39%

SPA

41.2%

NDA

12.9%

TVK

6.9%

Others

Anti-inc 8/10AIADMK Strong

VIRUGAMPAKKAM

CHENNAI · Chennai Metro

Toss-up

2.3% margin

33.4%

SPA

23.5%

NDA

35.7%

TVK

7.4%

Others

Anti-inc 6/10High SIR

CHEYYAR

TIRUVANNAMALAI · North TN

Toss-up

2.5% margin

39.4%

SPA

36.9%

NDA

16.8%

TVK

6.9%

Others

Anti-inc 6/10High SIR

PANRUTI

CUDDALORE · North TN

Toss-up

2.5% margin

38.1%

SPA

40.6%

NDA

14.9%

TVK

6.4%

Others

Anti-inc 8/10TVK Disruptive

VEDASANDUR

DINDIGUL · South TN

Toss-up

2.5% margin

39.6%

SPA

37.1%

NDA

15.7%

TVK

7.6%

Others

Anti-inc 7/10High SIR

KANCHEEPURAM

KANCHIPURAM · Other

Toss-up

2.5% margin

38%

SPA

35.5%

NDA

18.8%

TVK

7.7%

Others

Anti-inc 6/10High SIR

ULUNDURPET

VILLUPURAM · North TN

Toss-up

2.6% margin

37.2%

SPA

39.8%

NDA

15.6%

TVK

7.4%

Others

Anti-inc 9/10

VASUDEVANALLUR

TIRUNELVELI · Deep South

Toss-up

2.6% margin

32.7%

SPA

29.6%

NDA

30.1%

TVK

7.6%

Others

Anti-inc 6/10AIADMK StrongHigh SIR

SRIVILLIPUTHUR

VIRUDHUNAGAR · South TN

Toss-up

2.9% margin

30.4%

SPA

29.5%

NDA

33.2%

TVK

6.9%

Others

Anti-inc 6/10AIADMK StrongHigh SIR

POOMPUHAR

NAGAPATTINAM · Delta TN

Toss-up

2.9% margin

38.3%

SPA

41.3%

NDA

13.3%

TVK

7.1%

Others

Anti-inc 7/10AIADMK StrongHigh SIR

OTTAPIDARAM

THOOTHUKUDI · Deep South

Toss-up

2.9% margin

39.5%

SPA

36.6%

NDA

16.8%

TVK

7.1%

Others

Anti-inc 7/10AIADMK Strong

RASIPURAM

NAMAKKAL · Central TN

Toss-up

2.9% margin

38.6%

SPA

41.5%

NDA

12.9%

TVK

Others

Anti-inc 7/10AIADMK StrongHigh SIR

ERODE (EAST)

ERODE · Western TN

Toss-up

2.9% margin

35.5%

SPA

32.7%

NDA

24.3%

TVK

7.5%

Others

TVK DisruptiveAIADMK StrongHigh SIR