The electoral history of present-day Tamil Nadu between 1920 and 1947 is closely linked with the political developments of the Madras Presidency, one of the largest administrative regions under British rule in India. This period marked the gradual introduction of representative governance, the emergence of political parties, and the growth of mass political participation.

The first major step toward electoral politics in the Madras Presidency came with the implementation of the Government of India Act 1919, which introduced a limited system of provincial self-government known as “dyarchy.” Under this system, certain subjects such as education, agriculture, and local administration were transferred to elected Indian ministers, while the British retained control over key areas like finance and law and order.

The first legislative elections in the Madras Presidency were held in 1920. These elections were boycotted by the Indian National Congress as part of the Non-Cooperation Movement led by Mahatma Gandhi. As a result, the Justice Party, which represented non-Brahmin political interests in the region, won a decisive victory and formed the government.

The Justice Party’s leadership marked the beginning of organized non-Brahmin political representation in South India. Leaders such as A. Subbarayalu Reddiar and later Raja of Panagal implemented policies aimed at social justice and administrative reforms.

Subsequent elections in 1923, 1926, and 1930 saw continued competition between the Justice Party and emerging nationalist forces. Over time, the Congress began to participate in elections, and its influence steadily increased. The Justice Party governments introduced policies such as reservations in education and government jobs for non-Brahmin communities, which had a lasting impact on Tamil Nadu’s social structure.

A major turning point came with the Government of India Act 1935, which expanded provincial autonomy and introduced a more representative electoral system. This act significantly increased the powers of elected provincial governments.

The first election under the new constitutional framework was held in 1937. The Indian National Congress achieved a major victory in the Madras Presidency. C. Rajagopalachari, popularly known as Rajaji, became the Premier and formed the Congress government.

Rajaji’s administration introduced several reforms in education and administration. However, the Congress government resigned in 1939 in protest against Britain’s decision to involve India in World War II without consulting Indian leaders.

During the final years before independence, provincial governance in the Madras Presidency remained under British control for some time due to the resignation of Congress ministries. Political mobilisation continued through movements led by the Congress and other regional organisations.

By 1947, when India gained independence, the foundations of democratic politics had already been laid through nearly three decades of elections, political mobilization, and administrative reforms in the Madras Presidency. These early electoral experiences played a crucial role in shaping the vibrant democratic traditions that continue to define Tamil Nadu’s political landscape today.

During this period, electoral politics also contributed to the rise of powerful social and ideological movements that would later shape the state’s political identity. The debates on caste representation, social justice, language, and regional pride began to influence political discourse across the Madras Presidency. These developments laid the intellectual and political groundwork for the later emergence of Dravidian politics, which would dominate Tamil Nadu’s political landscape in the decades following independence.