The Congress-DMK alliance sweeps Lok Sabha polls leaving the AIADMK-BJP alliance with a single digit win. Currently, the DMK is leading on 12 of the assembly bypoll seats while the AIADMK is leading in nine.

Source: indianexpress.com

Here is a list of all the candidates that are leading in all the constituencies in Tamil Nadu. 

1. Arakkonam: S. Jagathrakshakan (DMK)

2. Arani: Dr. M K. Vishnu Prasad (INC)

3. Chennai Central: Dayanidhi Maran (DMK)

4. Chennai North: Dr. Kalanidhi Veeraswamy (DMK)

5. Chennai South: Sumathy (Alias) Thamizhachi Thangapandian (DMK)

6. Chidambaram: Thol. Thirumavalavan (Viduthalai Chiruthaigal Katchi)

7. Coimbatore: P. R. Natarajan (CPIM)

8. Cuddalore: T. R. V .S. Ramesh (DMK)

9. Dharmapuri: Senthil Kumar (DMK)

10. Dindigul: Velusamy (DMK)

11. Erode: Ganeshamurthi A (DMK)

12. Kallakurichi: Gautham Sigamani (DMK)

13. Kancheepuram: Selvam G (DMK)

14. Kanniyakumari: H. Vasanthakumar (INC)

15. Karur: Selvi Jothimani (INC)

16. Krishnagiri: Dr. A Chellakumar (INC)

17. Madurai: Su. Venkatesan (CPIM)

18. Mayiladuthurai: Ramalingam. S (DMK)

19. Nagapattinam: Selvaraj (CPI)

20. Namakkal: Chinraj A.K.P (Kongunadu Makkal Desiya Katchi)

21. Nilgiris: Raja. A (DMK)

22. Pollachi: K Shanmugasundaram (DMK)

23. Ramanathapuram: Nawaz Kani (IUML)

24. Salem: Parthiban S.R (DMK)

25. Sivaganga: Karti P Chidambaram (INC)

26. Sriperumbudur: Baalu.T.R (DMK)

27. Tenkasi: Dhanush M Kumar (DMK)

28. Thanjavur: Palanimanickam.S.S (DMK)

29. Theni: Raveendranath Kumar (AIADMK)

30. Thoothukkudi: Kanimozhi Karunanidhi (DMK)

31. Tiruchirappalli: Su. Thirunnavukkarasar (INC)

32. Tirunelveli: Gnanathiraviam S (DMK)

33. Tiruppur: K. Subbarayan (CPI)

34. Thiruvallur: Dr. K.Jayakumar (INC)

35. Tiruvannamalai: Annadurai C N (DMK)

36. Viluppuram: Ravikumar D (Viduthalai Chiruthaigal Katchi)

37. Virudhunagar: Manickam Tagore (INC)

38. Perambalur: Paarivendhar T R (Independent)

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