# N. R. Rengarajan

N. R. Rengarajan is an Indian politician and incumbent Member of the Legislative Assembly of Tamil Nadu. He was elected to the Tamil Nadu legislative assembly as a Tamil Maanila Congress (Moopanar) candidate from Pattukkottai constituency in 2001 election, and as an Indian National Congress candidate in 2006, 2011 election. He was elected three times: 2001, 2006, 2011.

## Electoral performance

2021 Tamil Nadu Legislative Assembly election : Pattukkottai :
| Party | Party | Candidate | Votes | % | ±% |
| | DMK | K. Annadurai | 79,065 | 32.16% | New |
| | AIADMK | N. R. Rengarajan | 53,796 | 21.88% | −20.69 |
| | Independent | V. Balakrishnan | 23,771 | 9.67% | New |
| | NTK | Keerthika Anbu | 10,730 | 4.36% | +2.59 |
| | AMMK | S. D. S. Selvam | 5,223 | 2.12% | New |
| | MNM | B. Sadasivam | 3,088 | 1.26% | New |
| | NOTA | NOTA | 1,026 | 0.42% | −0.51 |
| Margin of victory | Margin of victory | Margin of victory | 25,269 | 10.28% | 2.83% |
| Turnout | Turnout | Turnout | 245,832 | 99.99% | 26.97% |
| Rejected ballots | Rejected ballots | Rejected ballots | 350 | 0.14% | |
| Registered electors | Registered electors | Registered electors | 245,863 | | |
| | DMK gain from AIADMK | DMK gain from AIADMK | Swing | -10.41% | |
2011 Tamil Nadu Legislative Assembly election : Pattukkottai :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | N. R. Rengarajan | 55,482 | 37.91% | −8.77 |
| | DMDK | N. Senthilkumar | 46,703 | 31.91% | +23.42 |
| | Independent | A. R. M. Yoganandam | 22,066 | 15.08% | New |
| | BJP | V. Murali Ganesh | 10,164 | 6.94% | +5.33 |
| | Independent | S. Senthilkumar | 6,775 | 4.63% | New |
| | IJK | A. Saravanan | 1,424 | 0.97% | New |
| | Independent | A. Irene | 1,358 | 0.93% | New |
| | Independent | R. Singaravadivelan | 1,195 | 0.82% | New |
| | BSP | C. Inbarasan | 1,186 | 0.81% | −2.31 |
| Margin of victory | Margin of victory | Margin of victory | 8,779 | 6.00% | −6.18% |
| Turnout | Turnout | Turnout | 146,353 | 78.00% | 6.80% |
| Registered electors | Registered electors | Registered electors | 187,627 | | |
| | INC hold | INC hold | Swing | -8.77% | |
2006 Tamil Nadu Legislative Assembly election : Pattukkottai :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | N. R. Rengarajan | 58,776 | 46.68% | New |
| | MDMK | S. Viswanathan | 43,442 | 34.50% | +26.98 |
| | DMDK | N. Senthilkumar | 10,688 | 8.49% | New |
| | Independent | P. Jayabal | 6,230 | 4.95% | New |
| | BSP | S. Thoufeeq | 3,931 | 3.12% | New |
| | BJP | M. Ravi Chandiran | 2,029 | 1.61% | New |
| | AIFB | Chinna. Saminathan | 822 | 0.65% | New |
| Margin of victory | Margin of victory | Margin of victory | 15,334 | 12.18% | 6.23% |
| Turnout | Turnout | Turnout | 125,918 | 71.20% | 10.33% |
| Registered electors | Registered electors | Registered electors | 176,850 | | |
| | INC gain from TMC(M) | INC gain from TMC(M) | Swing | -0.81% | |
2001 Tamil Nadu Legislative Assembly election : Pattukkottai :
| Party | Party | Candidate | Votes | % | ±% |
| | TMC(M) | N. R. Rengarajan | 55,474 | 47.49% | New |
| | DMK | P. Balasubramanian | 48,524 | 41.54% | −17.97 |
| | MDMK | R. Elango | 8,782 | 7.52% | −0.71 |
| | JP | S. Adikesavan | 1,043 | 0.89% | New |
| | Independent | S. Jahirhussion | 980 | 0.84% | New |
| | Independent | Kumaravel Thangam | 833 | 0.71% | New |
| | Independent | M. R. Chokalinga Solanga Nattar | 660 | 0.56% | New |
| Margin of victory | Margin of victory | Margin of victory | 6,950 | 5.95% | −22.68% |
| Turnout | Turnout | Turnout | 116,819 | 60.87% | −10.13% |
| Registered electors | Registered electors | Registered electors | 192,049 | | |
| | TMC(M) gain from DMK | TMC(M) gain from DMK | Swing | -12.02% | |