M. Rajsekharan was elected to the Tamil Nadu Legislative Assembly from the Thottiam constituency in the 2006 election. He was a candidate of the Indian National Congress (INC) party. [1] Later he joined in All India Anna Dravida Munnetra Kazhagam. Then in 2017, He joined Amma Makkal Munnetra Kazhagam under leadership of T. T. V. Dinakaran
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| DMK | Dr. T. R. Paarivendhar | 683,697 | 62.45% | 37.96% | |
| AIADMK | N. R. Sivapathy | 2,80,179 | 25.59% | −19.80% | |
| NTK | K. Shanthi | 53,545 | 4.89% | ||
| AMMK | M. Rajasekharan | 45,591 | 4.16% | ||
| NOTA | None of the above | 11,325 | 1.03% | −0.10% | |
| Margin of victory | 4,03,518 | 36.86% | 15.96% | ||
| Turnout | 10,94,754 | 79.26% | −0.63% | ||
| Registered electors | 13,91,853 | 8.27% | |||
| DMK gain from AIADMK | Swing | 17.06% | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| AIADMK | R. P. Marutharajaa | 462,693 | 45.40% | 6.68% | |
| DMK | S. Seemanur Prabu | 2,49,645 | 24.49% | −23.58% | |
| BJP | T. R. Paarivendhar | 2,38,887 | 23.44% | ||
| INC | M. Rajasekharan | 31,998 | 3.14% | ||
| NOTA | None of the above | 11,605 | 1.14% | ||
| TNMK | K. Ramar Yadav | 6,324 | 0.62% | ||
| Margin of victory | 2,13,048 | 20.90% | 11.55% | ||
| Turnout | 10,19,221 | 80.25% | 0.22% | ||
| Registered electors | 12,85,576 | 22.55% | |||
| AIADMK gain from DMK | Swing | -2.68% | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| AIADMK | N. R. Sivapathi | 82,631 | 54.79% | +13.56 | |
| INC | M. Rajasekharan | 38,840 | 25.75% | New | |
| Independent | K. Kannaiyan | 19,193 | 12.73% | New | |
| BJP | S. P. Rajendran | 2,743 | 1.82% | +0.7 | |
| Independent | K. Panneerselvam | 1,761 | 1.17% | New | |
| Independent | M. Balakrishnan | 1,655 | 1.10% | New | |
| Independent | P. Tamilselvan | 1,350 | 0.90% | New | |
| Independent | N. M. Neethi Muthu Manal | 1,086 | 0.72% | New | |
| Independent | P. Senthilvel | 788 | 0.52% | New | |
| Margin of victory | 43,791 | 29.04% | 21.93% | ||
| Turnout | 184,922 | 81.55% | 5.85% | ||
| Registered electors | 150,808 | ||||
| AIADMK gain from DMK | Swing | 6.45% | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| INC | M. Rajasekharan | 43,080 | 34.84% | ||
| MDMK | Natarajan R. | 43,027 | 34.80% | 33.38% | |
| Independent | Kannaiyan K | 17,166 | 13.88% | ||
| DMDK | Manoharan P. | 12,445 | 10.07% | ||
| Independent | Baskar V. P. | 1,790 | 1.45% | ||
| BJP | Natesan N. | 1,709 | 1.38% | ||
| BSP | Saraswathi G | 1,635 | 1.32% | ||
| Independent | Senthilkumar P. | 1,425 | 1.15% | ||
| Independent | Usha C | 719 | 0.58% | ||
| Independent | Krishnan R | 646 | 0.52% | ||
| Margin of victory | 53 | 0.04% | −11.26% | ||
| Turnout | 1,23,642 | 74.58% | 7.93% | ||
| Registered electors | 1,65,785 | ||||
| INC gain from AIADMK | Swing | -14.54% | |||