Kanimozhi is a politician, poet and journalist. She is a Member of Parliament, representing Tamil Nadu in the Rajya Sabha. Kanimozhi is the daughter of the former Chief Minister of Tamil Nadu Karunanidhi and his third wife, Rajathi Ammal.
Kanimozhi belongs to the South Indian Dravida Munnetra Kazhagam (DMK) political party, where she functions as the chief of the DMK’s wing for Art, Literature and Rationalism, and is seen as her father's "literary heir".
On 20 May 2011 Kanimozhi Karunanidhi was arrested and sent to Tihar Prisons in India after her bail plea was rejected in the 2G spectrum scam case, in which she is alleged to be co-conspirator.