The United Front of Leftists (UFL) was a political alliance of the leftist and the socialist parties based in the erstwhile Indian state of TravancoreâÂÂCochin. It was created in 1952 by the political parties namely Communist Party of India, Revolutionary Socialist Party, and Kerala Socialist Party. Later, Praja Socialist Party, which was one of the strongest parties in the erstwhile TravancoreâÂÂCochin, also joined the alliance.