Trinamool Congress

The All India Trinamool Congress (AITC, transl. All India Grassroots Congress), or simply referred to as the Trinamool Congress (TMC; transl. Grassroots Congress), initially named West Bengal Trinamool Congress, was an Indian political party based in the state of West Bengal founded by Mamata Banerjee in 1998. AITC began as a breakaway faction of the Indian National Congress and rapidly rose to prominence in the politics of West Bengal under Banerjee's leadership. AITC ruled the state of West Bengal with Banerjee serving as chief minister from 2011 until 2026. The party first came to rule the state after defeating the Left Front in 2011 elections. Subsequently, the party won in 2016 and 2021 elections. However, it failed to gain majority in 2026 election, and was defeated by the Bharatiya Janata Party (BJP). After a rebellion within the party, the name and symbol of the party was frozen. Three factions emerged from the rebellion, the Nationalist Citizens Party of India, Democratic Trinamool Congress, and Mamata All India Trinamool Congress.