Kolkata (West Bengal) [India], March 15 (ANI): Roundglass Tennis Academy athlete Karan Singh put up a resilient fight before going down to Australia's Philip Sekulic in the final of the ITF Men's World Tennis Tour M25 Kolkata tournament on Sunday.In the singles final played at the Bengal Tennis Association stadium, Karan faced a challenging opening set but bounced back strongly in the second. He pushed his Austr