In 2018, RSP (Left) split, RSP (left) C.P Karthikeyan Group merged with Communist Marxist Party (John) led by C. P. John. RSP(Left) still continue alliance with LDF (Left Democratic Front), Last Re-organisation of LDF in 2018 December 26, After this Re-Organisation LDF Convener A.Vijaya Raghavan Said RSP(Left) is the Alliance party of LDF, Sasikumar cherukole led by RSP(Left).