Swiss star and top seed Stanislas Wawrinka has retained the Chennai Open Tennis title. In the final at Chennai today, the World No. 4 defeated 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. He had won the title last year and also in 2011. Bedene had become the first qualifier to reach final at Chennai Open.