The guy in the video is Pawan Kumar, a 28-year-old property dealer from Dallupura village in East Delhi's Mayur Vihar Phase 3. Yesterday he was filming a reel loading his cousin's licensed pistol, placed it against his chest, smiled at the camera, and accidentally pulled the trigger. He collapsed and was declared dead on arrival at the hospital.
It's apparently real:
Grok:
Other source: Hindustan Times