Independence
12 events, 1927 to 1954; 3 marked as turning points.
1927
Madras session of the Indian National Congress
The annual Congress session held in Madras under M. A. Ansari called for complete independence and a boycott of the Simon Commission.

1944
Rajagopalachari's C. R. formula
C. Rajagopalachari's proposal to resolve the Congress and Muslim League deadlock became the basis of the 1944 Gandhi and Jinnah talks.

1946
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.

1947
O. P. Ramaswamy Reddiyar becomes Premier
O. P. Ramaswamy Reddiyar, backed by Kamaraj, became Premier of Madras and led the province through independence.

Periyar calls Independence Day a day of mourning
Periyar called for 15 August 1947 to be kept as a day of mourning, a stand Annadurai rejected, deepening the rift between them.

Defence Services Staff College re-established at Wellington
After Partition the Indian staff college was re-established at Wellington in the Nilgiris, replacing the Staff College at Quetta.

India becomes independent; Madras Province
India gained independence and the Madras Presidency became Madras Province of the Dominion of India; Periyar called it a day of mourning.

1948
Pudukkottai princely state merges with the Indian Union
Pudukkottai, the princely state of the Thondaimans, joined India and was made a division of Tiruchirappalli district.

C. Rajagopalachari becomes Governor-General of India
C. Rajagopalachari succeeded Lord Mountbatten as Governor-General, the only Indian to hold the office.

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.

1954
French India transferred de facto to India after the Kizhoor referendum
After the Kizhoor referendum, Pondicherry, Karaikal, Yanam and Mahe passed de facto from France to the Indian Union.
