Assembly
49 events, 1861 to 2026; 14 marked as turning points.
1861
Indian Councils Act restores Madras legislative powers
Through the Indian Councils Act 1861, the Madras Presidency regained law-making powers and gained an advisory Madras Legislative Council.

1909
The Indian Councils Act 1909 introduced elections to the legislative councils, including Madras, and admitted Indians to the Madras executive council.

1919
Government of India Act 1919 introduces dyarchy
Based on the Montagu-Chelmsford Report, the Act introduced dyarchy in the provinces, including Madras, transferring some subjects to elected ministers.

1920
Justice Party wins first Madras Legislative Council election
The Justice Party won the first election held under the Montagu-Chelmsford dyarchy reforms in the Madras Presidency.
A. Subbarayalu Reddiar becomes first Premier of Madras
A. Subbarayalu Reddiar of the Justice Party took office as the first Chief Minister (Premier) of the Madras Presidency.
1923
Justice Party wins second council election
The Justice Party retained power in the 1923 Madras Legislative Council election despite internal dissent.
Panagal ministry survives no-confidence motion
On the first day of the new council, a no-confidence motion against the Raja of Panagal's Justice ministry was defeated 65 to 44.

1926
Muthulakshmi Reddy becomes first woman legislator in India
Doctor and reformer Muthulakshmi Reddy was nominated to the Madras Legislative Council, becoming the first woman legislator in British India.

P. Subbarayan forms independent ministry
After the Swaraj Party won the 1926 election but declined office, P. Subbarayan formed a ministry of independents with nominated support.

1930
Muthulakshmi Reddy resigns over Gandhi's arrest
Muthulakshmi Reddy resigned from the Madras Legislative Council in protest against the arrest of Mahatma Gandhi during civil disobedience.

Justice Party returns to power under B. Munuswamy Naidu
The Justice Party won the 1930 election, boycotted by the Congress, and B. Munuswamy Naidu became Premier.

1934
Swarajists largest party in 1934 Madras council election
The Swaraj Party won the most seats in the last dyarchy-era Madras council election but refused office; the Raja of Bobbili stayed on.
1937
Congress wins 1937 Madras Presidency election
The Indian National Congress won a large majority in the first Madras Legislative Assembly election under provincial autonomy, routing the Justice Party.
Muthuramalinga Thevar defeats the Raja of Ramnad
As the Congress candidate, Muthuramalinga Thevar beat the Raja of Ramnad in Ramanathapuram in the 1937 election.

1946
1946 Madras Presidency election
The Congress won a majority in the 1946 Madras Legislative Assembly election, ending the period of Governor's rule.
Muhammad Ismail leads the Muslim League opposition in Madras
M. Muhammad Ismail, later called Quaid-e-Millath, became Leader of the Opposition in the Madras Legislative Assembly.

Madras members join the Constituent Assembly
With a sizeable contingent from the Madras Province, the Constituent Assembly of India held its first sitting in New Delhi.

1949
P. S. Kumaraswamy Raja becomes Premier of Madras
P. S. Kumaraswamy Raja succeeded O. P. Ramaswamy Reddiyar as Premier and later became the first Chief Minister of Madras State.

1950
Madras State established under the Constitution
With the Constitution of India in force, the Madras Province became Madras State, a Part A state of the Indian Republic.

1952
First general election; Rajaji forms government
After the first general election left Congress short of a majority, C. Rajagopalachari was sworn in as Chief Minister of Madras State.

1957
DMK contests its first election
Won by Kamaraj's Congress, the 1957 Assembly election was the first in which the DMK took part after its founding.

1962
DMK becomes main opposition in 1962 election
Congress under Kamaraj retained power in 1962, while the DMK won 50 seats to become the principal opposition party.

1967
DMK wins the 1967 Assembly election
A DMK-led alliance defeated the Congress, ending Congress rule in Madras State; Kamaraj lost his own seat.

Kamaraj loses his seat to student leader P. Seenivasan
In the 1967 election, Congress president K. Kamaraj was defeated in Virudhunagar by the young DMK candidate P. Seenivasan.

1968
Assembly adopts the two-language policy
The Madras Legislative Assembly scrapped the three-language formula and removed Hindi from the school curriculum, adopting Tamil and English.
1971
DMK wins 184 seats in the 1971 election
The DMK, allied with Indira Gandhi's Congress, won a landslide in the first Assembly election held under the name Tamil Nadu.

1974
Assembly adopts state autonomy resolution
Chief Minister Karunanidhi moved a resolution in the Assembly demanding state autonomy, based on the Rajamannar Committee's recommendations.

1977
AIADMK wins assembly election, M. G. Ramachandran becomes Chief Minister
The AIADMK-led alliance won the 1977 assembly election and M. G. Ramachandran was sworn in as Chief Minister.

1980
AIADMK re-elected, MGR sworn in for second term
Months after the DMK and Congress swept the Lok Sabha polls, the AIADMK won the May 1980 assembly election, bringing MGR back as Chief Minister.

1984
AIADMK wins 1984 election while MGR is in hospital abroad
Contesting from a hospital in the United States, MGR led the AIADMK-Congress alliance to victory in the 1984 assembly election.
1986
Tamil Nadu Legislative Council abolished
The upper house of the Tamil Nadu legislature, in existence since 1921, was abolished at the request of the MGR government.
1988
Janaki Ramachandran ministry and President's rule
V. N. Janaki became Tamil Nadu's first woman Chief Minister, but her ministry was dismissed within weeks and President's rule followed.

1989
DMK returns to power, Karunanidhi Chief Minister again
After 13 years in opposition, the DMK won the January 1989 assembly election and M. Karunanidhi became Chief Minister for the third time.

AIADMK factions merge under Jayalalithaa
The two AIADMK factions merged and accepted J. Jayalalithaa as general secretary; she became the first woman Leader of the Opposition in the Assembly.

Clash in the Tamil Nadu Assembly on budget day
DMK and AIADMK members clashed in the Assembly as Karunanidhi rose to present the budget; Jayalalithaa left vowing to return only as Chief Minister.
1991
Jayalalithaa becomes Chief Minister for the first time
The AIADMK-Congress alliance swept the June 1991 election and J. Jayalalithaa became Chief Minister, the youngest in the state's history at the time.

1996
DMK-TMC alliance wins 1996 election
The DMK-TMC alliance won 221 of 234 assembly seats and all 39 Lok Sabha seats; M. Karunanidhi became Chief Minister for the fourth time.

2001
AIADMK alliance wins the 2001 Assembly election
The AIADMK-led alliance defeated the DMK government and J. Jayalalithaa was sworn in as Chief Minister for the second time.

2006
DMK forms a minority government
M. Karunanidhi became Chief Minister for the fifth time, heading a DMK government that depended on outside support from the Congress.

2010
New Assembly-Secretariat complex inaugurated
A new legislature and secretariat building on Anna Salai was opened, but the next government moved back to Fort St. George and turned it into a hospital.

2011
AIADMK returns to power in 2011
The AIADMK alliance won a large majority and J. Jayalalithaa became Chief Minister for the third time; the DMDK became the main opposition.

2013
India's Prime Minister skips CHOGM in Colombo after Tamil Nadu pressure
After a unanimous Tamil Nadu Assembly resolution, Prime Minister Manmohan Singh stayed away from the Commonwealth summit in Colombo.
2015
Jayalalithaa announced low-cost comprehensive health check-ups in government hospitals and twice-weekly tests at primary health centres.
2016
Winning a second term in a row, the AIADMK became the first party in power in Tamil Nadu to be returned to office since 1984.

2021
DMK wins 2021 election; M. K. Stalin becomes Chief Minister
The DMK-led alliance won the 2021 Assembly election and M. K. Stalin was sworn in as Chief Minister for the first time.

Assembly passes NEET exemption bill
The Assembly passed a bill to admit students to medical courses on Class 12 marks instead of NEET, and re-passed it after the Governor returned it.
2023
Governor R. N. Ravi walks out of the Assembly
Governor R. N. Ravi left the Assembly after it resolved to record only the government-prepared address, which he had departed from.

Actor and DMDK founder Vijayakanth, a former Leader of the Opposition, died in Chennai.

2026
TVK wins most seats in 2026; Vijay becomes Chief Minister
In its first election the TVK became the largest party with 108 seats, and C. Joseph Vijay was sworn in as Chief Minister with the support of allies.
