The Trinamool Congress on Monday celebrated its Foundation Day as the party turned 20.Chief Minister and TMC supremo Mamata Banerjee congratulated the grassroot workers for their efforts in serving the people of the state."On January 1, 1998 @AITCofficial was formed. My best wishes to all 'grassroots' workers of the party who work tirelessly for the people. Many thanks to every citizen for your blessings & support. Greetings to Maa, Mati, Manush," Banerjee tweeted.Subrata Bakshi, TMC General Secretary, added that the party would continue their fight against the divisive politics of the Bharatiya Janata Party (BJP).He said that nobody could suppress the voice of CM Banerjee against the divisive policies of the BJP and that the people of this state and the country would fight against the communal party.Instructions were issued last week to conduct various programmes on Monday across the state to mark the 20th Foundation Day of TMC.Flag-hoisting programmes and street-corner meetings were held by several district leaders underlining their achievements in the last six-and-a-half years.The party was founded by Banerjee on January 1, 1998.