Krishna's father is film producer K.K.Sekar (Pattiyal Sekar) and his brother is noted film director, Vishnuvardhan. He went to St. Bede's Anglo Indian Higher Secondary School in Chennai, studied at Loyola College and graduated with an MBA in finance in the United States. He worked for a year and a half in the IT industry and started his own business that was doing well. He has also undergone training in Jazz and worked as a dancer/choreographer before he left for US. He first faced the camera for Mani Ratnam's Anjali and later appeared in Iruvar and Santosh Sivan's The Terrorist. After his first film, he wanted to do a gangster film based on a true incident in North Madras, called Madras to be directed by Five Star Krishna, but it was shelved because of misunderstandings between the director and the producer. His next two films Kattradhu Kalavu and Kazhugu were also produced by his father. In Kazhugu he played someone who recovers bodies of suicide victims who jump off a cliff. It received positive response.