# Results of the 2004 Indian general election in Tamil Nadu by constituency

This is a detailed results of 2004 general election by individual constituents in Tamil Nadu.

## Results by party
### Results by party

| Party | Alliance | Seats Contested | Votes | % | Change | Seats | Change |
| Bahujan Samaj Party | none | 30 | 167,619 | 0.58 | n/a | 0 | n/a |
| Bharatiya Janata Party | National Democratic Alliance | 6 | 1,455,899 | 5.07 | -2.07 | 0 | -4 |
| Communist Party of India | Left Front | 2 | 852,981 | 2.97 | +0.41 | 2 | +2 |
| Communist Party of India (Marxist) | Left Front | 2 | 824,524 | 2.87 | +0.52 | 2 | +1 |
| Indian National Congress | United Progressive Alliance | 10 | 4,134,255 | 14.40 | +3.30 | 10 | +8 |
| All India Anna Dravida Munnetra Kazhagam | National Democratic Alliance | 33 | 8,547,014 | 29.77 | +4.09 | 0 | -10 |
| Communist Party of India (Marxist-Leninist) Liberation | Left Front | 3 | 6,886 | 0.02 | -0.01 | 0 | 0 |
| Dravida Munnetra Kazhagam | United Progressive Alliance | 16 | 7,064,393 | 24.60 | +1.47 | 16 | +4 |
| Janata Dal (United) | National Democratic Alliance | 20 | 884,293 | 3.08 | n/a | 0 | n/a |
| Marumaralarchi Dravida Munnetra Kazhagam | United Progressive Alliance | 4 | 1,679,870 | 5.85 | -0.10 | 4 | 0 |
| Pattali Makkal Katchi | United Progressive Alliance | 5 | 1,927,367 | 6.71 | -1.50 | 5 | 0 |
| Rashtriya Lok Dal | none | 3 | 3,985 | 0.01 | n/a | 0 | n/a |
| Shiv Sena | National Democratic Alliance | 2 | 5,154 | 0.02 | +0.02 | 0 | 0 |
| Samajwadi Party | none | 4 | 6,645 | 0.02 | n/a | 0 | n/a |
| Akhil Bharatiya Hindu Mahasabha | none | 4 | 11,568 | 0.04 | n/a | 0 | n/a |
| Bharatiya Backward Party | none | 2 | 2,162 | 0.01 | n/a | 0 | n/a |
| Jebamani Janata | none | 1 | 734 | 0.00 | n/a | 0 | n/a |
| Janata Party | National Democratic Alliance | 28 | 149,646 | 0.52 | n/a | 0 | n/a |
| Republican Party of India (Athvale) | United Progressive Alliance | 2 | 9,654 | 0.03 | +0.02 | 0 | 0 |
| Tamil Desiyak Katchi | none | 2 | 25,348 | 0.09 | 0.00 | 0 | 0 |
| Youth and Students Party | none | 1 | 6,580 | 0.02 | n/a | 0 | n/a |
| Independents | none | 391 | 947,938 | 3.30 | +2.05 | 0 | 0 |
| Total | 571 | 28,714,515 | - | - | 39 | - |

## Results by constituency
### Chennai North

* Note: Dravida Munnetra Kazhagam, Marumalarchi Dravida Munnetra Kazhagam, Pattali Makkal Katchi were all part of the National Democratic Alliance, in 1999, but joined the United Progressive Alliance in 2004. So the coalition switches, represent the change in coalition from the 1999 election to 2004 election.
General Election, 2004: Chennai North :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | C. Kuppusami | 570,122 | 62.25 | +9.55 |
| | BJP | Sukumar Nambiar M.N. | 316,583 | 34.57 | n/a |
| Majority | Majority | Majority | 253,539 | 27.68 | +9.81 |
| Turnout | Turnout | Turnout | 915,879 | 45.77 | +1.98 |
| | DMK hold | DMK hold | Swing | +9.55 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Chennai Central :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | Dayanidhi Maran | 316,329 | 61.68 | +2.68 |
| | AIADMK | Balaganga N. | 182,151 | 35.52 | −1.32 |
| Majority | Majority | Majority | 134,178 | 26.16 | +4.00 |
| Turnout | Turnout | Turnout | 512,853 | 49.06 | +0.60 |
| | DMK hold | DMK hold | Swing | +2.68 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Chennai South :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | T.R.Baalu | 564,578 | 60.37 | +0.34 |
| | AIADMK | Bader Sayeed | 343,838 | 36.77 | n/a |
| Majority | Majority | Majority | 220,740 | 23.60 | −2.04 |
| Turnout | Turnout | Turnout | 935,143 | 47.96 | +2.80 |
| | DMK hold | DMK hold | Swing | +0.34 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Sriperumbudur :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | A. Krishnaswamy | 517,617 | 61.39 | +9.63 |
| | AIADMK | Dr. Venugopal P. | 282,271 | 33.48 | −8.22 |
| | Independent | Vijayaragunathan M. | 11,995 | 1.42 | n/a |
| | Independent | Balakrishnan K. | 11,517 | 1.37 | n/a |
| Majority | Majority | Majority | 235,346 | 27.91 | +17.84 |
| Turnout | Turnout | Turnout | 843,160 | 59.23 | +4.21 |
| | DMK hold | DMK hold | Swing | +9.63 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Chengalpattu :
| Party | Party | Candidate | Votes | % | ±% |
| | PMK | A. K. Moorthy | 431,643 | 56.85 | +9.62 |
| | AIADMK | Ramachandran K.N. | 282,919 | 37.26 | −8.13 |
| | JP | Kumaresan A. | 10,956 | 1.44 | n/a |
| | BSP | Nahamani J. | 8,659 | 1.14 | n/a |
| Majority | Majority | Majority | 148,724 | 19.59 | +17.76 |
| Turnout | Turnout | Turnout | 759,246 | 65.02 | +6.69 |
| | PMK hold | PMK hold | Swing | +9.62 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Arakkonam :
| Party | Party | Candidate | Votes | % | ±% |
| | PMK | R. Velu | 386,911 | 49.88 | n/a |
| | AIADMK | Shanmugam N. | 284,715 | 36.70 | n/a |
| | JD(U) | Sethumadhavan S. | 34,876 | 4.50 | n/a |
| | JP | Kulandaivelu M. | 22,284 | 2.87 | n/a |
| | Independent | Venkatesan V. | 9,646 | 1.24 | n/a |
| Majority | Majority | Majority | 102,196 | 13.17 | +0.30 |
| Turnout | Turnout | Turnout | 775,745 | 66.86 | +0.54 |
| | PMK gain from DMK | PMK gain from DMK | Swing | +49.88 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
Note: The incumbent party DMK did not contest this seat in 2004. Instead it was contested by its United Progressive Alliance coalition partner PMK, who won the seat. Thus, the UPA held the seat. PMK had not contested this seat in the previous 1999 elections.
General Election, 2004: Vellore :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | K. M. Kader Mohideen | 436,642 | 58.38 | n/a |
| | AIADMK | Santhanam A. | 258,032 | 34.50 | −8.03 |
| | JP | Paramasivam A.M.S. | 11,309 | 1.51 | n/a |
| | BSP | Karunanithi E. | 7,524 | 1.01 | n/a |
| Majority | Majority | Majority | 178,610 | 23.88 | +20.23 |
| Turnout | Turnout | Turnout | 747,898 | 61.28 | +0.31 |
| | DMK gain from PMK | DMK gain from PMK | Swing | +58.38 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
Note: The incumbent party PMK did not contest this seat in 2004. Instead it was contested by its United Progressive Alliance coalition partner DMK, who won the seat. Thus, the UPA held the seat. DMK had not contested this seat in the previous 1999 elections.
General Election, 2004: Tiruppattur :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | D. Venugopal | 453,786 | 58.43 | +11.43 |
| | AIADMK | Subramani K.G. | 272,884 | 35.14 | −8.70 |
| | JD(U) | Irshad Ahamed H.S. | 12,327 | 1.59 | n/a |
| | BSP | Rajendiran P. | 8,284 | 1.07 | n/a |
| Majority | Majority | Majority | 180,902 | 23.29 | +20.13 |
| Turnout | Turnout | Turnout | 776,597 | 63.99 | −1.18 |
| | DMK hold | DMK hold | Swing | +11.43 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Vandavasi :
| Party | Party | Candidate | Votes | % | ±% |
| | MDMK | N. Ramachandran Gingee | 394,903 | 56.12 | n/a |
| | AIADMK | Rajalakshmi R. | 243,470 | 34.60 | n/a |
| | JD(U) | Punniyakotti P. | 23,609 | 3.36 | n/a |
| | Independent | Vinayagam S. | 14,473 | 2.06 | n/a |
| Majority | Majority | Majority | 151,433 | 21.52 | +12.81 |
| Turnout | Turnout | Turnout | 703,669 | 62.35 | +0.80 |
| | MDMK gain from PMK | MDMK gain from PMK | Swing | +56.12 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
Note: The incumbent party PMK did not contest this seat in 2004. Instead it was contested by its United Progressive Alliance coalition partner MDMK, who won the seat. Thus, the UPA held the seat. MDMK had not contested this seat in the previous 1999 elections.
General Election, 2004: Tindivanam :
| Party | Party | Candidate | Votes | % | ±% |
| | PMK | K. Dhanaraju | 367,849 | 50.40 | n/a |
| | AIADMK | Arunmozhithevan. A | 276,685 | 37.91 | n/a |
| | JD(U) | Gopalakrishnan. P | 29,915 | 4.10 | n/a |
| | Independent | Mohamed Ali Jinna. M | 10,987 | 1.51 | +1.43 |
| | Independent | Perumal. S | 8,083 | 1.11 | n/a |
| Majority | Majority | Majority | 91,164 | 12.49 | +11.15 |
| Turnout | Turnout | Turnout | 729,863 | 62.98 | +1.33 |
| | PMK gain from MDMK | PMK gain from MDMK | Swing | +50.40 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
Note: The incumbent party MDMK did not contest this seat in 2004. Instead it was contested by its United Progressive Alliance coalition partner PMK, who won the seat. Thus, the UPA held the seat. PMK had not contested this seat in the previous 1999 elections.
General Election, 2004: Cuddalore :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | K. Venkatapathy | 400,059 | 52.63 | +3.15 |
| | AIADMK | Rajendran. R | 268,707 | 35.35 | −3.92 |
| | JD(U) | Sarwar Khan. E | 53,406 | 7.03 | n/a |
| | Independent | Veerapatran. P. M | 13,664 | 1.80 | n/a |
| Majority | Majority | Majority | 131,352 | 17.28 | +7.07 |
| Turnout | Turnout | Turnout | 760,187 | 62.99 | −0.77 |
| | DMK hold | DMK hold | Swing | +3.15 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Chidambaram :
| Party | Party | Candidate | Votes | % | ±% |
| | PMK | E. Ponnuswamy | 343,424 | 46.17 | −0.95 |
| | JD(U) | Thirumaavalavan Thol | 255,773 | 34.38 | n/a |
| | BJP | Periasamy. D | 113,974 | 15.32 | n/a |
| Majority | Majority | Majority | 87,651 | 11.78 | −4.53 |
| Turnout | Turnout | Turnout | 743,871 | 66.09 | +0.07 |
| | PMK hold | PMK hold | Swing | -0.95 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Dharmapuri :
| Party | Party | Candidate | Votes | % | ±% |
| | PMK | R. Senthil | 397,540 | 55.93 | +9.27 |
| | BJP | P D Elangovan | 181,450 | 25.53 | n/a |
| | JD(U) | Munusamy (Alais) Thamilselvan. M | 62,960 | 8.86 | n/a |
| | Tamil Desiyak Katchi | Balasubramaniam. M | 23,553 | 3.31 | +1.64 |
| | Independent | Jaganathan. V. P | 10,968 | 1.54 | n/a |
| | Independent | Mahendran. D | 10,370 | 1.46% | +1.37 |
| Majority | Majority | Majority | 216,090 | 30.40% | +26.90 |
| Turnout | Turnout | Turnout | 710,736 | 54.86 | −4.55 |
| | PMK hold | PMK hold | Swing | +9.27 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Krishnagiri :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | E. G. Sugavanam | 403,297 | 54.51 | +4.68 |
| | AIADMK | Nanje Gowdu. K | 284,075 | 38.40 | −6.87 |
| | BSP | Sanaulla Shariff. H | 14,055 | 1.90 | n/a |
| | Independent | Syed Nikhar. A | 11,830 | 1.60 | n/a |
| | Independent | Ameerjan. S | 8,679 | 1.17 | n/a |
| Majority | Majority | Majority | 119,222 | 16.11 | +11.55 |
| Turnout | Turnout | Turnout | 739,864 | 59.07 | −0.91 |
| | DMK hold | DMK hold | Swing | +4.68 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Rasipuram :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | K. Rani | 384,170 | 55.20 | n/a |
| | AIADMK | S. Anbalagan | 249,637 | 35.87 | −11.54 |
| | JD(U) | Ayyasamy. S | 24,522 | 3.52 | n/a |
| | Independent | Ravi. R | 12,286 | 1.77 | n/a |
| Majority | Majority | Majority | 134,533 | 19.33 | +13.36 |
| Turnout | Turnout | Turnout | 695,990 | 61.46 | +6.09 |
| | INC gain from AIADMK | INC gain from AIADMK | Swing | +55.20 | |
| | UPA gain from AIADMK | UPA gain from AIADMK | Swing | | |
Note: AIADMK, was not part of a coalition, in 1999 election, hence it is a gain for UPA.
General Election, 2004: Salem :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | K. V. Thangkabalu | 444,591 | 59.93 | n/a |
| | AIADMK | Rajasekaran. A | 268,964 | 36.26 | −12.63 |
| | Independent | Shah Jahan. M A | 8,466 | 1.14 | n/a |
| Majority | Majority | Majority | 175,627 | 23.67 | +20.26 |
| Turnout | Turnout | Turnout | 741,847 | 59.29 | +0.13 |
| | INC gain from AIADMK | INC gain from AIADMK | Swing | +59.93 | |
| | UPA gain from AIADMK | UPA gain from AIADMK | Swing | | |
Note: AIADMK, was not part of a coalition, in 1999 election, hence it is a gain for UPA.
General Election, 2004: Tiruchengode :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | Subbulakshmi Jagadeesan | 501,569 | 58.00 | n/a |
| | AIADMK | Palaniswami. K | 322,172 | 37.26 | −10.58 |
| | Independent | Palanisamy. K | 14,208 | 1.64 | n/a |
| Majority | Majority | Majority | 179,397 | 20.75 | +20.21 |
| Turnout | Turnout | Turnout | 864,735 | 59.92 | +4.51 |
| | DMK gain from MDMK | DMK gain from MDMK | Swing | +58.00 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
Note: The incumbent party MDMK did not contest this seat in 2004. Instead it was contested by its United Progressive Alliance coalition partner DMK, who won the seat. Thus, the UPA held the seat. DMK had not contested this seat in the previous 1999 elections.
General Election, 2004: Nilgiris :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | R. Prabhu | 494,121 | 63.26 | +16.69 |
| | BJP | M. Master Mathan | 257,619 | 32.98 | −16.81 |
| | Independent | Pappannan. T. K | 10,649 | 1.36 | n/a |
| Majority | Majority | Majority | 236,502 | 30.28 | +27.05 |
| Turnout | Turnout | Turnout | 781,152 | 59.29 | +4.21 |
| | INC gain from BJP | INC gain from BJP | Swing | 16.69 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Gobichettipalayam :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | E. V. K. S. Elangovan | 426,826 | 62.75 | n/a |
| | AIADMK | Govindarajar, N. R. | 212,349 | 31.22 | −15.33 |
| | Independent | Shaik Muhaideen, S. | 15,356 | 2.26 | n/a |
| Majority | Majority | Majority | 214,477 | 31.53 | +26.86 |
| Turnout | Turnout | Turnout | 680,240 | 64.64 | +4.36 |
| | INC gain from AIADMK | INC gain from AIADMK | Swing | +62.75 | |
| | UPA gain from AIADMK | UPA gain from AIADMK | Swing | | |
Note: AIADMK, was not part of a coalition, in 1999 election, hence it is a gain for UPA.
General Election, 2004: Coimbatore :
| Party | Party | Candidate | Votes | % | ±% |
| | CPI | K. Subbarayan | 504,981 | 57.43 | +14.41 |
| | BJP | Radhakishnan. C. P | 340,476 | 38.72 | −10.48 |
| | Independent | Vellingiri. S | 11,562 | 1.31 | n/a |
| Majority | Majority | Majority | 164,505 | 18.71 | +12.52 |
| Turnout | Turnout | Turnout | 879,335 | 55.51 | −0.12 |
| | CPI gain from BJP | CPI gain from BJP | Swing | +14.41 | |
| | Left Front (Tamil Nadu) gain from NDA | Left Front (Tamil Nadu) gain from NDA | Swing | | |
General Election, 2004: Pollachi :
| Party | Party | Candidate | Votes | % | ±% |
| | MDMK | Dr. C. Krishnan | 364,988 | 56.76 | +8.98 |
| | AIADMK | Murugan. G | 244,067 | 37.95 | −8.28 |
| | Independent | Rajkumar. R | 13,039 | 2.03 | +0.90 |
| | Independent | Ganesan. K M | 6,503 | 1.01 | −0.11 |
| Majority | Majority | Majority | 120,921 | 18.80 | +17.25 |
| Turnout | Turnout | Turnout | 643,073 | 61.88 | +4.79 |
| | MDMK hold | MDMK hold | Swing | +8.98 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Palani :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | S. K. Kharventhan | 448,900 | 64.50 | n/a |
| | AIADMK | Kishore Kumar. K | 217,407 | 31.24 | −12.38 |
| | Independent | Jeyaprakash. P | 11,337 | 1.63 | n/a |
| Majority | Majority | Majority | 231,493 | 33.26 | +29.05 |
| Turnout | Turnout | Turnout | 696,007 | 63.92 | +5.03 |
| | INC gain from AIADMK | INC gain from AIADMK | Swing | +64.50 | |
| | UPA gain from AIADMK | UPA gain from AIADMK | Swing | | |
Note: AIADMK, was not part of a coalition, in 1999 election, hence it is a gain for UPA.
General Election, 2004: Dindigul :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | N. S. V. Chitthan | 407,116 | 58.92 | n/a |
| | AIADMK | Jeyaraman. M | 251,945 | 36.46 | −6.48 |
| | Independent | Ravindran. J | 10,359 | 1.50 | +1.47 |
| Majority | Majority | Majority | 155,171 | 22.46 | +19.49 |
| Turnout | Turnout | Turnout | 690,973 | 60.75 | +3.29 |
| | INC gain from AIADMK | INC gain from AIADMK | Swing | +58.92 | |
| | UPA gain from AIADMK | UPA gain from AIADMK | Swing | | |
Note: AIADMK, was not part of a coalition, in 1999 election, hence it is a gain for UPA.
General Election, 2004: Madurai :
| Party | Party | Candidate | Votes | % | ±% |
| | CPI(M) | P. Mohan | 414,433 | 56.01 | +12.22 |
| | AIADMK | A. K. Bose | 281,593 | 38.06 | n/a |
| | JD(U) | Sakthivel, P. | 12,093 | 1.63 | n/a |
| | JP | Subramanian Swamy | 12,009 | 1.62 | −1.11 |
| Majority | Majority | Majority | 132,840 | 17.95 | +12.99 |
| Turnout | Turnout | Turnout | 739,937 | 55.05 | +2.64 |
| | CPI(M) hold | CPI(M) hold | Swing | +12.22 | |
| | Left Front (Tamil Nadu) hold | Left Front (Tamil Nadu) hold | Swing | | |
General Election, 2004: Periyakulam :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | J. M. Aaron Rashid | 346,851 | 49.51 | n/a |
| | AIADMK | T.T.V. Dhinakaran | 325,696 | 46.49 | +0.85 |
| Majority | Majority | Majority | 21,155 | 3.02 | −3.86 |
| Turnout | Turnout | Turnout | 700,603 | 66.29 | +6.93 |
| | INC gain from AIADMK | INC gain from AIADMK | Swing | +49.51 | |
| | UPA gain from AIADMK | UPA gain from AIADMK | Swing | | |
Note: AIADMK, was not part of a coalition, in 1999 election, hence it is a gain for UPA.
General Election, 2004: Karur :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | K. C. Palanisamy | 450,407 | 60.43 | +15.42 |
| | AIADMK | Palanichamy, Raja. N | 259,531 | 34.82 | −10.57 |
| | Independent | Jawahar. N | 14,552 | 1.95 | n/a |
| Majority | Majority | Majority | 190,876 | 25.61 | +25.22 |
| Turnout | Turnout | Turnout | 745,342 | 69.70 | +6.76 |
| | DMK gain from AIADMK | DMK gain from AIADMK | Swing | +15.42 | |
| | UPA gain from AIADMK | UPA gain from AIADMK | Swing | | |
Note: AIADMK, was not part of a coalition, in 1999 election, hence it is a gain for UPA.
General Election, 2004: Tiruchirappalli :
| Party | Party | Candidate | Votes | % | ±% |
| | MDMK | L. Ganesan | 450,907 | 63.59 | n/a |
| | AIADMK | Paranjothi. M | 234,182 | 33.02 | n/a |
| | Independent | Ravi. P | 7,831 | 1.10 | n/a |
| Majority | Majority | Majority | 216,725 | 30.56 | +17.87 |
| Turnout | Turnout | Turnout | 709,134 | 59.48 | +3.08 |
| | MDMK gain from BJP | MDMK gain from BJP | Swing | +63.59 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Perambalur :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | A. Raja | 389,708 | 55.01 | +7.50 |
| | AIADMK | Dr. M. Sundaram | 236,375 | 33.37 | −4.36 |
| | JD(U) | Ganesan. V | 47,041 | 6.64 | n/a |
| | Independent | Jaisankar. K | 15,935 | 2.25 | n/a |
| | JP | Dr. M. Thatchanamoorthy | 7,470 | 1.05 | n/a |
| Majority | Majority | Majority | 153,333 | 21.64 | +11.87 |
| Turnout | Turnout | Turnout | 708,434 | 70.88 | +5.48 |
| | DMK hold | DMK hold | Swing | +7.50 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Mayiladuturai :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | Mani Shankar Aiyar | 411,160 | 59.08 | +9.60 |
| | AIADMK | O. S. Manian | 215,469 | 30.96 | n/a |
| | JD(U) | Rajan J. | 49,124 | 7.06 | n/a |
| | Independent | Rahmathullah U. | 8,335 | 1.20 | n/a |
| Majority | Majority | Majority | 195,691 | 28.12 | +22.00 |
| Turnout | Turnout | Turnout | 695,889 | 68.09 | +4.48 |
| | INC hold | INC hold | Swing | +9.60 | |
| | UPA hold | UPA hold | Swing | | |
General Election, 2004: Nagapattinam :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | A. K. S. Vijayan | 463,389 | 61.66 | +12.50 |
| | AIADMK | Archunan. P J | 247,166 | 32.89 | n/a |
| | JD(U) | Ramesh. S G M | 17,090 | 2.27 | n/a |
| | Independent | Murugesan. K | 9,480 | 1.26 | n/a |
| Majority | Majority | Majority | 216,223 | 28.77 | +25.54 |
| Turnout | Turnout | Turnout | 751,581 | 71.65 | +5.63 |
| | DMK hold | DMK hold | Swing | +12.50 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Thanjavur :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | S. S. Palanimanickam | 400,986 | 56.56 | +11.97 |
| | AIADMK | Thangamuthu. K | 281,838 | 39.75 | +0.15 |
| | Independent | Shahul Hameed. A. R. | 10,606 | 1.50 | n/a |
| Majority | Majority | Majority | 119,148 | 16.81 | +11.82 |
| Turnout | Turnout | Turnout | 708,971 | 68.78 | +5.72 |
| | DMK hold | DMK hold | Swing | +11.97 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Pudukkottai :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | S. Regupathy | 466,133 | 56.82 | n/a |
| | AIADMK | Ravichandran. A | 309,637 | 37.75 | n/a |
| | BSP | Nagooran. A | 10,024 | 1.22 | n/a |
| | Independent | M. S. Lion Rajendran | 9,723 | 1.19 | n/a |
| Majority | Majority | Majority | 156,496 | 19.08 | +10.84 |
| Turnout | Turnout | Turnout | 820,300 | 66.42 | +2.32 |
| | DMK gain from MADMK | DMK gain from MADMK | Swing | +56.82 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
Note: The incumbent party MADMK did not contest this seat in 2004. Instead it was contested by its coalition partner from the previous 1999 elections - DMK. Also, this is a gain for the UPA, since MADMK, the incumbent was part of the NDA coalition, while DMK left the NDA for UPA
General Election, 2004: Sivaganga :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | P. Chidambaram | 400,393 | 60.00 | +20.57 |
| | AIADMK | Karuppiah. S P | 237,668 | 34.60 | n/a |
| | Independent | Subramanian Mutharaiyar. M Arimalam | 9,709 | 1.46 | n/a |
| Majority | Majority | Majority | 162,725 | 24.39 | +20.57 |
| Turnout | Turnout | Turnout | 703,669 | 62.35 | +0.80 |
| | INC hold | INC hold | Swing | +20.57 | |
| | UPA hold | UPA hold | Swing | | |
General Election, 2004: Ramanathapuram :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | M. S. K. Bhavani Rajenthiran | 335,287 | 49.66 | +9.32 |
| | AIADMK | Murugesan. C | 225,337 | 33.38 | −8.00 |
| | JD(U) | Kannappan. S | 79,507 | 11.78 | n/a |
| | Independent | Veeraya. T | 6,858 | 1.02 | n/a |
| Majority | Majority | Majority | 109,950 | 16.29 | +15.25 |
| Turnout | Turnout | Turnout | 675,157 | 58.83 | +1.34 |
| | DMK gain from AIADMK | DMK gain from AIADMK | Swing | +9.32 | |
| | UPA gain from AIADMK | UPA gain from AIADMK | Swing | | |
Note: AIADMK, was not part of a coalition, in 1999 election, hence it is a gain for UPA.
General Election, 2004: Sivakasi :
| Party | Party | Candidate | Votes | % | ±% |
| | MDMK | A. Ravichandran | 469,072 | 56.44 | +15.23 |
| | AIADMK | Kannan. P | 304,555 | 36.64 | +4.89 |
| | JD(U) | Dheepa Valentina. T | 27,130 | 3.26 | n/a |
| | Independent | Venkatesan. K | 10,156 | 1.22 | n/a |
| Majority | Majority | Majority | 164,517 | 19.79 | +10.34 |
| Turnout | Turnout | Turnout | 831,167 | 63.27 | +0.41 |
| | MDMK hold | MDMK hold | Swing | +15.23 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Tirunelveli :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | R. Dhanuskodi Athithan | 370,127 | 58.39 | n/a |
| | AIADMK | R. Amirtha Ganesan | 203,052 | 32.03 | −8.88 |
| | JD(U) | M. Appavu | 39,333 | 6.21 | n/a |
| Majority | Majority | Majority | 167,075 | 26.36 | +22.02 |
| Turnout | Turnout | Turnout | 633,846 | 58.35 | +3.89 |
| | INC gain from AIADMK | INC gain from AIADMK | Swing | +58.39 | |
| | UPA gain from AIADMK | UPA gain from AIADMK | Swing | | |
Note: AIADMK, was not part of a coalition, in 1999 election, hence it is a gain for UPA.
General Election, 2004: Tenkasi :
| Party | Party | Candidate | Votes | % | ±% |
| | CPI | M. Appadurai | 348,000 | 48.85 | n/a |
| | AIADMK | S. Murugesan | 225,824 | 31.70 | −3.62 |
| | JD(U) | Dr. K. Krishnasamy | 101,122 | 14.19 | n/a |
| | Independent | M. Vadivel Kumar | 14,441 | 2.03 | n/a |
| Majority | Majority | Majority | 122,176 | 17.15 | +17.02 |
| Turnout | Turnout | Turnout | 712,409 | 65.68 | +0.80 |
| | CPI gain from AIADMK | CPI gain from AIADMK | Swing | +48.85 | |
| | Left Front (Tamil Nadu) gain from AIADMK | Left Front (Tamil Nadu) gain from AIADMK | Swing | | |
General Election, 2004: Tiruchendur :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | V. Radhika Selvi | 394,484 | 62.50 | +18.89 |
| | AIADMK | T. Thamodaran | 212,803 | 33.72 | +1.05 |
| Majority | Majority | Majority | 181,681 | 28.79 | +17.83 |
| Turnout | Turnout | Turnout | 631,124 | 61.18 | +8.83 |
| | DMK hold | DMK hold | Swing | +18.89 | |
| | UPA gain from NDA | UPA gain from NDA | Swing | | |
General Election, 2004: Nagercoil :
| Party | Party | Candidate | Votes | % | ±% |
| | CPI(M) | A. V. Bellarmin | 410,091 | 60.87 | n/a |
| | BJP | P. Radhakrishnan | 245,797 | 36.48 | −12.94 |
| Majority | Majority | Majority | 164,294 | 24.39 | +0.97 |
| Turnout | Turnout | Turnout | 673,716 | 60.69 | +1.90 |
| | CPI(M) gain from BJP | CPI(M) gain from BJP | Swing | +60.87 | |
| | Left Front (Tamil Nadu) gain from NDA | Left Front (Tamil Nadu) gain from NDA | Swing | | |