Arulnithi Tamilarasu is a Tamil actor of recent times. His grandfather, Dr. M Karunanidhi, was a former chief minister of Tamil Nadu. His father, M K Tamilarasu was former Deputy Chief Minister and Home Minister of Tamil Nadu.
Arulnithi belongs to a family of politicians. He has produced three films, and his brothers are incredible producers of Tamil movies. He has pursued his degree at Loyola College and went to Pondicherry for further degree and qualifications. In the year 2015, he got married to a Tamil girl according to their culture.
Arulnithi's first film Vamsam, produced by his father, hit the screens in 2010 and reaped a profit. Arulnidhi received a positive response from the viewers. Before the release of the movie, the movie was heavily promoted in every street of Tamil Nadu. His first film changed the life of him, and this made him popular. His third venture Mouna Guru fared quite well at the box office and was screened at an International film festival.