Anna University is a technical university in Tamil Nadu, India. The main university campus in located in Guindy, Chennai. It was named after former C. N. Annadurai, former Chief Minister of Tamil Nadu on 4 September 1978. It became an affiliating university in 2001, absorbing all engineering colleges in Tamil Nadu. In 2007, it was split into six constituent universities namely Chennai (campus), Chennai, Coimbatore, Madurai, Tiruchirappalli and Tirunelveli. In September 14, 2011, the constituents were merged back to a single affiliating university for engineering colleges in Tamil Nadu.