Grandmaster Dronavalli Harika scored a sensational victory over former world championship challenger Nigel Short of England, while Viswanathan Anand won his second game in a row in the third round of the Masters section of Gibraltar Chess Congress in Gibraltar.With her third win in as many games, Harika remained a co-leader and she now shares the lead with 10 other players in this 185000 Pounds Sterling prize money festival.S P Sethuraman, young Grandmaster Aravindh Chithambaram and Harika are three Indians among the eleven leaders with perfect scores. This list includes second seed Maxime Vachier-Lagrave of France and Dmitry Jakovenko of Russia.Sethuraman was in his elements to beat Bai Jinshi of China, and Aravindh Chithambaram lived up to his giant-killer tag to tame higher rated compatriot Sandipan Chanda.Anand scored a crushing victory over Xiangyu Xu of China and jumped to joint 12th spot with seven rounds still remaining in one of the strongest open of the world.The second highest rated Indian, P Harikrishna also rose after a draw in the previous round to beat Frenchman Fabien Libiszewski and match Anand on 2.5 points.