I’m guessing the video is from South Asia, but that’s just a guess, because I don’t have any background information.
The video shows a young man agonizing next to a railway track after a train apparently ran over and amputated his leg at the hip. There could be significant, potentially irreversible crotch damage the man suffered. That alone could double the agony of losing one’s leg.
Props to Best Gore member @momox for the video: