Tamil Nadu had taken active participation in the pre-independence politics of the nation. The budding desire for independence had generated numerous volunteers in the state who sacrificed their lives in the service of the nation. Several political leaders of the state fought against the British and French colonial power, notable among them are Tiruppur Kumaran, Aurobindo Ghosh (Pondicherry) and poet Subramanya Bharathi. Finally India got her freedom in 1947 and Tamil Nadu got the separate status of a state in the Indian Union.

The political scenario of Tamil Nadu was dominated by the Congress Party after 1947 which gave way to the Dravidian populist mobilization in the 1960s. Since 1967, the regional political parties took active participation in the state politics. The state has been under the control of either Dravida Munnetra Kazhagam (DMK) or All India Anna Dravida Munnetra Kazhagam (AIADMK). Mr. M. Karunanidhi is the party leader of DMK "since 1967" and the oldest politician in the country whose history begins right before from the country's independence.

M. G. Ramachandran, popularly known as MGR, "became the Chief Minister of the state in 1977" and remained in the power until his death. After his death then the party was taken over by Ms. J. Jayalalitha.

In the period between 1999 and 2003, the DMK was one of the members of the Coalition government led by the BJP but in 2004 DMK shifted to the opposite campaign with Congress and won the national elections with a clean sweep in the state and made themselves as one of the strongest regional party in the Congress lead UPA Government now. In more recent time (from 13 May 2006) the state is under the power of DMK lead by M. Karunanidhi, the present Chief Minister of the state. He is the only person to have been appointed 5 times as the Chief Minister in the state.

This is a general overview of the political scenario of the state and how Tamil Nadu is marching towards a developed and prosperous state in the nation offering stable and well administration to the public.

List of Assembly Constituencies