Natham R. Viswanathan: the career, year by year
- Assembly win
- Office held
- Party
- 1996
Elected to the District Panchayat, where he served until 2001.
- 1999
Won the Natham by-election for the AIADMK, ending the Congress's long hold on the seat.
- May 2001
Won Natham for the AIADMK, by 10,602 votes.
- May 2001
Became Minister for Transport in J. Jayalalithaa's cabinet.
- May 2006
Held Natham for the AIADMK, by 3,760 votes over the DMK.
- 13 May 2011
Won Natham for the AIADMK, by 53,089 votes over the DMK.
- May 2011
Became Minister for Electricity, Prohibition and Excise in Jayalalithaa's cabinet.
- 19 May 2016
Lost Athoor as the AIADMK's candidate, by 27,147 votes to the DMK.
- 2 May 2021
Won Natham for the AIADMK, by 11,932 votes over the DMK.
- 13 Jul 2022
Appointed an AIADMK deputy general secretary by Edappadi K. Palaniswami, with K.P. Munusamy.
- 4 May 2026
Won Natham for the AIADMK (polling was on 23 April).
See the full 2026 result