New Delhi, Oct. 13 -- When Dr. Kartik Karkera is not running marathons, he is either setting a bone or working with a scalpel in the operation theatre. An orthopaedic surgeon, he is one of the rare Indian athletes who juggle a demanding full-time profession with competitive sport, excelling at both. On Sunday, it was a special moment for Karkera to finish on the podium in the Indian elite men's category at the Delhi Half Marathon. He came third clocking 1 hour, 5 minutes, 16 secs. A beaming Kartik, flanked by his father Jayraj and coach Vijender Singh, proudly wore the medal. "This was my fourth appearance at the elite level in the Delhi Half Marathon, and today was my best finish. I pushed a lot. Last year, I finished 10th. I was doing tra...