Top seed Stanislas Wawrinka has retained the ATP Chennai Open Singles title. In the summit clash at Chennai today, the Swiss World No. 4 overcame the challenge of Aljaz Bedene of Slovenia in straight sets 6-3, 6-4. Wawrinka did not face a single break point on his serve and needed only 90 minutes to grab his third Chennai Open title. Bedene was the first qualifier to reach final. In the Doubles final, India's Leander Paes partnering South African Raven Klaasen lost to the pair of Jonathan Marray and Yen-Hsun Lu in straight sets 3-6. 6-7.