Fairs :

All India Tourist & Industrial Fair
(Jan -March) World Tourism Day (27th September)
India Leather Fair (Dec -Jan).
Various Specialised Fairs at frequent intervals.

Festivals :

Arubathumoovar Festival (Mar - Apr) at Kapaleeswarar Temple.
Vaikuntha Ekadesi Festival (Dec-Jan) at Parthasarathy Temple
Kandhashasti Festival at (Oct-Nov) at Kandaswamy Temple
Annai Velankanni Festival (Aug- Sep) at Velankanni Church
Music Concerts & Dance Performances at various halls throughout Chennai (Dec-Jan) almost daily.