Chengam

There were a total of 266629 registered voters on the electoral rolls for the 2026 Assembly election in Chengam Assembly constituency, of whom 132571 were male, 134045 female and 13 belonged to the third gender.

In the 2021 Assembly elections, there were a total of 274963 registered voters, of whom 136247 were male, 138714 female and 2 belonged to the third gender. In the 2016 Assembly elections, there were a total of 250015 registered voters, of whom 125160 were male, 124853 were female and 2 belonged to the third gender. In 2011 elections, there were a total of 211656 registered voters in this constituency, of whom 107054 were male, 104602 were female and 0 belonged to the third gender.

The number of service voters in this Assembly constituency was 456 in 2021, 201 in 2016, and 236 in 2011.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2026 was 1011, in 2021 it was 1018, 998 in 2016, and 977 in 2011.

Chengam Assembly constituency will go to the polls in Phase 1 of the 2026 Tamil Nadu Assembly elections on Thursday, April 23, 2026. The counting of votes will take place on Monday, May 4, 2026.

In the 2021 state Assembly elections, this seat voted in Phase 1 on Tuesday, April 6, 2021 and the results were declared on Sunday, May 2, 2021.

In the 2016 state Assembly elections, this seat voted in Phase 1 on Monday, May 16, 2016 and the results were declared on Thursday, May 19, 2016.

In the 2011 polls, this constituency voted in Phase 1 on Wednesday, April 13, 2011 and the results were declared on Friday, May 13, 2011.

Chengam Assembly constituency comprises the following areas of Tiruvannamalai district in the North region of Tamil Nadu: Chengam Taluk (Part) Kuppanatham, Paramanandal, Theethandapattu, Valayempattu, Pudupattu, Alaputhur, Quilam, Anvarabath, Se.Nachipattu, Kayampattu, Chennasamudram, Pakkiripalayam, Arasankanni, Melchengam, Melchengam RF, Andanur, Melpulidiyur, Perumpattam, Manmalai, Kariyamangalam, Pinjur, Vedankuppam, Melpallipattu, Melvanakkambadi, Anandavadi RF, Anandavadi, Kattamaduvu, Naradapattu, Melravandavadi, Karimalaipadi, Andipatti, Thambunaickenpatti, Manandipatti, Porasapattu, Thalayuthu, Arattavadi, Ariyakunju, Sorppanandal, Melpennathur, Uchimalaikuppam, Vinnavanur, Pachal, Nallur, Kannakurukkai, Chinnakolapadi, Paliyapattu, Aswanagasurunai, Periakolapadi, Beemanandal, Melkaripur, Kolundampattu, Sathanur, Sathanur Dam, Neepathurai, Vellalampatti, Elangunni, Kurumapatti, Kalladavi, Manikkal, Puliyampatti, Karungalipadipatti, Veppurchekkadi, Veeranam, Tharadapattu, Kanakkandal, Nedungavadi, Agaram (se), Perumbakkam, Seranthangal, Kilvanakkambadi, Thandarampattu, Keelravandavandi, Olagalapadi, Keelamanjanoor, Melamanjanoor, T. Velur, Se.Andapattu, Thanipadi, Chinniyampettai, Reddiapalayam, Malaiyanurchekkadi, Kilpachar, Melpachar, Mothakkal, Melmuthanur, Athipadi, Pudurchekkadi, Jambodai, Bondai, Narayanakuppam, Appunaickanpalayam, Thiruvidathanur, Edathanur, Thenmudiyanur, Agarampallipattu, Allappanur, Royandapuram, Puthurchekkadi, Beemarapatti, Melmalachi, Akkarapatti, Semmampatti, Perunkolathur, Thondamanur, Sadakuppam, Unnamalaipalayam, Valavachanur, Kottaiyur, Palamarathur, Vannankuttai, Bandirev, Padapanjamarathur, Melsilambadi, Kilthatiyapattu, Melthathiyapattu, Puliyur, Urgoundanur, Kilaiyur, Erukampattu, Nellivoy, Athipattu, Perumuttam, Kallathur, Melpattu, Chinnakilpattu and Kilpattu villages. Chengam (TP).

This constituency covers an approximate area of 1361 square kilometers and the geographic coordinates of Chengam is: 12°10'46.6"N 78°49'38.6"E.

According to data released by the Election Commission of India, In 2021, this seat registered a turnout of 80.66%, while it was 84.2% in 2016, and 84.27% in 2011.

In the 2021 Tamil Nadu Assembly elections, Giri M P of DMK won in this constituency beating Nainakannu M S of AIADMK by a margin of 11570 votes which was 5.19% of the total votes cast. In 2016, Giri .M.P of DMK was the winner in this seat beating Dinagaran. M of AIADMK by a margin of 12691 votes which was 6.03% of the total votes polled in the constituency. In the 2011 Assembly elections, Suresh@Sureshkumar.T of DMDK won this seat defeating Selvaperunthagai.K of INC by a margin of 11497 votes which was 6.45% of the total votes polled for the seat.

In the 2021 Tamil Nadu Assembly elections, Giri M P of DMK had a vote share of 48.5% in this seat. In the 2016 Assembly elections, Giri .M.P of DMK got a vote share of 45.6% , In the 2011 Assembly elections, Suresh@Sureshkumar.T of DMDK got a vote share of 46.95% in Chengam.