Mausam began his 2011 season with the 34th National Games. Representing Haryana, he won gold medal in the 96 kg freestyle event after defeating Jharkhand's Narendra in the final. In the Asian Championships, after getting bye in the first round, he lost to the eventual finalist in the second round. And he lost the bronze medal repechage bout against Mongolia's Natsagsürengiin Zolboo. In the 2011 Commonwealth Wrestling Championships, which was held in Melbourne, Khatri was able to successfully defend his title after winning the final bout against his countryman Varun Kumar. Participating in his career's first senior level World Championships, Khatri registered victories against Leon Rattigan and Harutyun Yenokyan in the first two rounds. However, he lost to Slovakia's Jozef Jaloviar in the pre-quarter-final.