| Constituency No: | 40 |
| District: | Vellore |
| Loksabha Cons: | Arakkonam |
| State: | Tamil Nadu |
| Mla: | Durai Murugan |
| Latest Election Year: | 2021 |
| Katpadi | |
| Type: | SLA |
| Electors: | 2,48,567[1] |
| Reservation: | None |
Katpadi is a state assembly constituency in Vellore district in Tamil Nadu, India.[2] Its State Assembly Constituency number is 40. It comprises portions of the Katpadi, Vellore, and Walajah taluks. It is a part of Arakkonam constituency for national elections to the Parliament of India.[3] The constituency was formed in 1962 by separating Gudiyatham constituency.[4] It is one of the 234 State Legislative Assembly Constituencies in Tamil Nadu, in India.
| Created | 2016 |
| Adi dravidar | 25% |
| Vanniyar | 25% |
| Sengunthar kaikolar mudaliar | 20% |
| Telugu People and Religious Minorities | 20% |
| Others | 10% |
| Total Electorate(2016) | 2,29,868 |
| Year | Winner | Party | |
|---|---|---|---|
| 1962 | B. Rajagopal Naidu | ||
| 1967 | G. Natarajan | ||
| Year | Winner | Party | |
|---|---|---|---|
| 1971 | Durai Murugan | ||
| 1977 | M. A. Jayavelu | ||
| 1980 | N. A. Poongavanam | ||
| 1984 | G. Ragupathi | ||
| 1989 | Durai Murugan | ||
| 1991 | K. M. Kalaiselvi | ||
| 1996 | Duraimurugan | ||
| 2001 | |||
| 2006 | |||
| 2011 | |||
| 2016 | |||
| 2021 | |||