Star Indian wrestler Bajrang Punia suffered a shock defeat in his quarterfinal bout but returned into medal contention as he entered the 65kg repechage round at World Championships in Belgrade on Saturday. Bajrang succumbed to a technical superiority (10-0) defeat at the hands of 23-year-old two-time cadet world champion Yianni Diakomihalis of the USA in the last eight round. However, the two-time Commonwealth Games champion, who is searching for his fourth World Championships medal, became active again as he entered the repechage round after Diakomihalis reached the final.