His father Shri N. S. Veerapathira Thevar was a member of Congress during the Pre Independence period.

[1] Chithan joined Congress when he was young and contested the elections in 1967 when DMK routed Congress and managed to win even though he was contesting the elections for the first time and given the fact that there was a wave in favour of DMK.

He has not been a Minister in the Union Government but has served on different committees and has been attributed to the Development of Madurai suburban localities and the transition of Road networks and Industries in Dindigul district and Madurai District.

[1] Recipient of Silver Medal by Bureau of Parliamentary Affairs for raising maximum number (more than 7000) of questions on the floor of the Tamil Nadu Legislative Assembly during 1967-71.

He also served as the General Secretary of Tamil Nadu Congress Committee for 2 years.