Tamil Nadu Legislative Assembly
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The Tamil Nadu Legislative Assembly is the unicameral legislature of the Indian state of Tamil Nadu. It has a strength of 234 members, all of whom are democratically elected using the first-past-the-post system. The presiding officer of the assembly is the Speaker. The term of the assembly is five years, unless dissolved earlier. Since Tamil Nadu has a unicameral legislature, the terms Tamil Nadu Legislature and Tamil Nadu Legislative Assembly are almost synonymous and are often confused, though they are not the same. The Tamil Nadu Legislative Assembly, along with the governor of Tamil Nadu, constitutes the legislature. The present state of Tamil Nadu is a residuary part of the erstwhile Madras Presidency and was formerly known as Madras State. The first legislature of any sort for the Presidency was the Madras Legislative Council, which was set up as a non-representative advisory body in 1861. In 1919, direct elections were introduced with the introduction of diarchy under the Government of India Act 1919. Between 1920 and 1937, the Legislative Council was a unicameral legislature for the Madras Presidency. The Government of India Act 1935 abolished diarchy and created a bicameral legislature in the Madras Presidency. The Legislative Assembly became the Lower House of the Presidency. After the Republic of India was established in 1950, the Madras Presidency became the Madras State, and the bicameral setup continued. The Madras State's assembly strength was 375, and the first assembly was constituted in 1952. The current state was formed in 1956 after the reorganisation of states, and the strength of the assembly was reduced to 206. Its strength was increased to the present 234 in 1965. Madras State was renamed Tamil Nadu in 1969, and subsequently, the assembly came to be called the Tamil Nadu Legislative Assembly. The Legislative Council was abolished in 1986, making the legislature a unicameral body and the assembly its sole chamber. The present Seventeenth Legislative Assembly was constituted in May 2026. It was constituted after the 2026 assembly election, which resulted in a Hung Assembly for the first time in the state's history, with no pre-poll alliance getting a majority. TVK became the single largest party in the assembly in their first contested election.