| Dr. T. Sadhan Tirumalaikumar | |
| Native Name: | தி.சதன் திருமலைக்குமார் |
| Birth Place: | Singilipatti, Tamil Nadu |
| Office: | Member of the Tamil Nadu Legislative Assembly |
| Constituency1: | Vasudevanallur |
| Term Start: | May 2,2021 |
| Predecessor: | A. Manoharan |
| Term Start2: | 2006 |
| Term End2: | 2011 |
| Predecessor2: | R. Eswaran |
| Successor2: | Dr.S. Duraiappa |
| Party: | Marumalarchi Dravida Munnetra Kazhagam (1994-present), Dravida Munnetra Kazhagam (1980-1994) |
| Occupation: | Politician |
| Residence: | Puliyankudi Kadayanallur, Tenkasi |
| Spouse: | Chandrakantham |
| Alma Mater: | Madurai Kamaraj University |
| Children: | Jeyanti Priyardarshini |
| Father: | Thirumalaiyandi T |
Dr. T. Sadhan Tirumalaikumar is an Indian politician and a currently serving Member of the Legislative Assembly representing the Vasudevanallur constituency. He is a member of Marumalarchi Dravida Munnetra Kazhagam party . He was elected to the Tamil Nadu legislative assembly from Vasudevanallur constituency in 2006 election as a Marumalarchi Dravida Munnetra Kazhagam candidate.[1] [2]
| Elections | Constituency | Party | Result | Vote percentage | Opposition Candidate | Opposition Party | Opposition vote percentage | |
|---|---|---|---|---|---|---|---|---|
| 1991 Indian general election | Tenkasi | DMK | 33.24 | M. Arunachalam | INC | 63.56 | ||
| 2014 Indian general election | Tenkasi | MDMK | 18.96 | M. Vasanthi | AIADMK | 42.31 |
| Elections | Constituency | Party | Result | Vote percentage | Opposition Candidate | Opposition Party | Opposition vote percentage | |
|---|---|---|---|---|---|---|---|---|
| 1996 Tamil Nadu Legislative Assembly election | Rajapalayam | MDMK | 13.80 | V. P. Rajan | DMK | 38.62 | ||
| 2001 Tamil Nadu Legislative Assembly election | Sankarankoil | MDMK | 17.25 | C. Karuppasamy | AIADMK | 43.51 | ||
| 2006 Tamil Nadu Legislative Assembly election | Vasudevanallur | MDMK | 40.27 | R. Krishnan | CPI(M) | 34.33 | ||
| By-election, 2012 | Sankarankoil | MDMK | 12.9 | S. Muthuselvi | AIADMK | 59.4 | ||
| 2016 Tamil Nadu Legislative Assembly election | Sankarankoil | MDMK | 11.72 | V. M. Rajalakshmi | AIADMK | 44.36 | ||
| 2021 Tamil Nadu Legislative Assembly election | Vasudevanallur | MDMK | 39.57 | A. Manoharan | AIADMK | 38.20 |