Indian challenge ended today in the on-going Indian Open Super Series badminton tournament. In the quarterfinals of the men's singles at the Siri Fort Complex in New Dehil, the country's young shuttlers Sourabh Verma and RMV Gurusai Datt suffered straight-game defeats. Giant killer Sourabh, who had beaten Athen Olympics bronze medallist Sony Kuncoro of Indonesia and seventh seed Kenichi Tago of Japan on his way to the quarterfinals, suffered a 7-21 8-21 defeat against World number one Lee Chong Wei of Malaysia. Datt went down fighting to world number 20 Hu Yun of Hong Kong 10-21 16-21 in a 35-minute match. Datt had beaten fourth seed Boonsak Ponsana of Thailand and Yuhan Tan of Belgium in the first two rounds. All other Indian contestants in the inaugural 200,000 dollar Indian Open Super Series championship had made their exit yesterday.