Dravida Munnetra Kazhagam
Ramaswamy started his political career in Dravida Munnetra Kazhagam and became the Home Minister of Pondicherry in the Dravida Munnetra Kazhagam -Communist Party of India coalition ministry from 1969 to 1973 but soon after shifted his allegiance to the All India Anna Dravida Munnetra Kazhagam in 1973 a Party founded by M. G. Ramachandran in 1972 as a breakaway faction of the Dravida Munnetra Kazhagam.