The United Democratic Front (UDF) is an alliance of political parties in Kerala state, India, created by the prominent Indian National Congress (INC) party leader Shri. K. Karunakaran in the 1970s. Since its formation, the coalition has sustained itself on support from different social, caste and religious groups as a powerful bloc to take on the Communist Party of India (Marxist) (CPI (M)) led Left Democratic Front (LDF). This alliance is led by the INC party in the state of Kerala.