TN 2026 result  ›  By-elections
4 by-elections expected · ECI informed 26 May 2026

Four by-elections coming. AIADMK 47 → 43.

Between 25–26 May 2026, four AIADMK MLAs from the Velumani-Shanmugam rebel faction resigned and joined the ruling TVK at a meeting with general secretary Aadhav Arjuna. Speaker J.C.D. Prabhakar accepted all four resignations; the Tamil Nadu Assembly Secretariat formally informed the Election Commission of India on 26 May. By-elections are now expected in Madurantakam, Dharapuram, Perundurai and Ambasamudram.

By-polls expected
4 ACs
AIADMK strength
43 / 47
ECI informed
26 May 2026

Vacant constituencies

AC 35 · Chengalpattu

Madurantakam

Former MLA: Maragatham Kumaravel (AIADMK)
Resigned: 2026-05-25
Joined TVK same day
Booth-wise result
AC 101 · Tiruppur

Dharapuram

Former MLA: P. Sathyabama (AIADMK)
Resigned: 2026-05-25
Joined TVK same day
Booth-wise result
AC 103 · Erode

Perundurai

Former MLA: S. Jayakumar (AIADMK)
Resigned: 2026-05-25
Joined TVK same day
Booth-wise result
AC 225 · Tirunelveli

Ambasamudram

Former MLA: Essaki Subbaiah (AIADMK)
Resigned: 2026-05-26
Joined TVK same day
Booth-wise result

What happened — chronology

25 May 2026: Three rebel MLAs — Maragatham Kumaravel (Madurantakam), P. Sathyabama (Dharapuram), S. Jayakumar (Perundurai) — meet Speaker, tender resignations, join TVK.

26 May 2026: Essaki Subbaiah (Ambasamudram) becomes the 4th MLA to quit; Speaker initially requests a handwritten version, then accepts. Assembly Secretariat informs ECI of 4 vacancies.

27 May 2026: AIADMK factions reconcile; both Schedule X petitions withdrawn; rebels apologise to EPS. "No split in party, only differences of opinion" — SP Velumani.

Note: By-elections will be scheduled by the Election Commission of India under the Representation of People Act, 1951. The Commission typically announces dates 4–6 weeks before polling. This page updates as ECI publishes notification dates.
Full timeline →