As of 2010, the company has around 30,000 employees and operates about 6800 retail liquor outlets throughout the state. These regions are further divided into 33 districts run by district managers. The company organisation is divided territorially into five regions- Chennai, Coimbatore, Madurai, Trichy and Salem each under a regional manager. It is governed by a board whose members belong to the Indian Administrative Service (IAS). Its headquarters is situated at the CMDA towers in Egmore, Chennai.

TASMAC is wholly owned by the government of Tamil Nadu, coming under the purview of the Ministry of Prohibition and Excise. Karunanidhi which took power in 2006, did not revise its predecessor's policy and TASMAC continues to control the alcohol industry in the state. Jayalalithaa came into effect on 29 November 2003. This monopoly established by the AIADMK government of J. By 2004 all private outlets selling alcohol were either shut down or taken over by the company. In October 2003, the government passed an amendment to the Tamil Nadu Prohibition Act, 1937, making TASMAC the sole retail vendor of alcohol in the state.

But the lot system could not prevent cartelisation, as bidders later withdrew in favour of others. The government tried to counter this by introducing a lot system from the financial year 2001–02, where potential bidders bid for shops grouped by revenue. But this led to the formation of cartels and loss of revenue to the state. For retail vending, the state auctioned off licenses for running liquor shops and bars. In 2001, prohibition was lifted again and TASMAC became the wholesale monopoly for alcohol. After 1983, TASMAC was in charge of wholesale liquor sales in the state whenever prohibition was lifted.

The state has a long history of prohibition, first implemented partially in 1937 by the Indian National Congress government of C. TASMAC was established in 1983 by then Chief Minister M. It controls the Indian Made Foreign Liquor (IMFL) trade in the state. The Tamil Nadu State Marketing Corporation (TASMAC) is a company owned by the Government of Tamil Nadu, which has a monopoly over wholesale and retail vending of alcoholic beverages in the Indian state of Tamil Nadu.

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