Raju Abraham entered politics through his activism in Students' Federation of India. He was the SFI Unit Secretary in M.S. High School, Ranni (1975).[3] He was the Chairman of St. Thomas College, Ranni in 1980 and later the University Union Councillor (1981).[3] He was the president of SFI Pathanamthitta Taluk Committee and a district committee member of SFI in Kollam.[3]
He was elected to CPI(M) Ranni Taluk Committee in 1983. From 1991 onwards, he has worked as the district committee member of Pathanamthitta and from 1996 as the district secretariat member.[3] He is also associated with Centre of Indian Trade Unions.[3] He was the president of Ranni Taluk Quarry Workers Union in 1982 and president of Ranni Taluk Auto, Taxi, Tempo, Lorry Union in 1995.[3] Later he became the president of the Pathanamthitta District Private Motor Workers Union.[3]
