MUMBAI, July 1 -- India's Shameena Riaz stunned top seed Hayley Ward of South Africa in four close games to advance to the women's quarter-finals of the HCL Squash PSA Challenger Tour-Mumbai. The Tamil Nadu girl rallied to beat her world No 62 opponent 8-11, 11-9, 11-9, 11-9 in the second round at the Juhu Vile Parle Gymkhana Club. India's Om Semwal overcame Brazilian third seed Diego Gobbi in a five-setter. Shaunak Kelkar bagged a grand double, winning the Boys' U-11 singles and doubles titles in the Maharashtra State Sub-junior (U-11 & U-13) Selection Badminton Tournament. In the singles finals, Shaunak defeated Toyesh Das 21-10, 21-10 to emerge champion. Later, Shaunak along with partner Gautam Sathe went on to win the boys' doubles final defeating Pradyumna Meshram and Raghav Niwarti 21-12, 21-17....