That's abundantly clear in several clips posted on Big Pictures' official YouTube channel. I selected some of the clips on their channel that best exemplify his badass status, with some involving him escaping the Chinese army and manhandling a gang of thugs.
Vidyut Jammwal plays a special-ops secret agent for the Indian Armed Services. During one of the missions the commando's chopper is shot down & is now behind enemy-lines.You'll find the clips embedded below.
From here on the commando embarks on a survival mission battling physically challenging environments, gun totting enemies in foreign land & is en route to his base. The commando uses his intense training, well honed survival & combat skills against the enemy in the face of this extreme environment.