In the World Athletics Championships in South Korea, India's Tintu Luka made it to the women's 800m semifinals but shot putter Om Prakash Karhana was eliminated in the qualifying round at Daegu on Thursday. Tintu Luka clocked 2 minutes 01.89 seconds to finish sixth in heat number four, which was enough for her to make it to tomorrow's semifinals. Russia's European champion Mariya Savinova won Luka's heat after pipping defending champion Caster Semenya of South Africa in a photo finish for the same timing. Meanwhile, shot putter Om Prakash failed to qualify for the final round after finishing 12th in Group A qualification round and 23rd overall with a throw of 19.29metres. National record holder triple jumper Renjith Maheswary will also compete on Friday. India are being represented by eight athletes in the World Championships.