Sports Development Authority of Tamil Nadu Tennis Stadium, commonly known as SDAT Stadium, sometimes also called Nungambakkam Tennis Stadium, is located in Nungambakkam, Chennai, Tamil Nadu, India, and plays host for the Chennai Open ATP Tennis championships held in the first week of January every year. The stadium was built in 1995 by the Government of Tamil Nadu on the occasion of South Asian Federation Games held in Chennai that year. The stadium has been the venue for Indian Open tennis tournament annually since 1997. The stadium witnessed some dramatic scenes in 1998 when legends like Boris Becker and Patrick Rafter took part in the then named Goldflake Open.