Kerala Socialist Party (KSP) was a political party in India founded under the leadership of Mathai Manjooran on 21 September 1947 at Kozhikode. It began as a small party, but its front-line leaders compelled the party deep into the public imagination. In the changed atmosphere of the present it is hard to evoke the degree of excitement and promise the new party held out to the State. Within the short time span of two decade and a half of its coming into existence KSP came to play a larger-than-life role in the political landscape of the post-independence Kerala State.