Some context I found, although I don't know how reliable it is.
"Alright I think everyone who has watched that video needs to know the story behind it.
First of all, the show on which it happened is called Dadagiri, which literally translates to "Bullying". The hosts of the show are supposed to be big time bullies who give out challenges to the contestants of the show, and the person who clears the challenges of all the three bullies will get to win a cash prize (around $1250). The bullies of the show talk smack all the time, and get physical on occasion (although not always) and the people that sign up to be contestants of the show have to agree to that they will get all this **** when they go in.
So when that incident on the show happened, the third bully of the show named Esha, that girl with a dominatrix outfit, was asking the contestants some questions, but they were not answering and instead chose to keep quiet. Then the guy (the HOW CAN SHE SLAP ME guy) decided to be funny and said "We don't want to talk to you actually", so she told him to **** off, the guy then had the audacity to tell the girl "you go" when it was her show to begin with.
The girl (she was in her character of the dominating bully, and this is a part of it) then proceeded to slap him, and the guy slapped her back. Things could have been totally normal here and the other host tried to talk the guy out of his anger because even he must have thought that it was a reflex and asked him why was he angry. But the guy tried to be alpha in the situation and began creating a fuss by shouting "HOW CAN SHE SLAP ME" at the top of his voice when he in fact had extracted his revenge and should have quietly walked out. There was no need to create such a big deal out of it. He was trying to say that the girl was wrong as if slapping a girl was a right thing to do on his part.
Due to him shouting over and over, the host who was trying to calm him down got pissed off and started pounding on him. The crowd came together to separate them from each other and not to fight. Only the other host and one other guy beat him. The others were just watching. Foul language was used, and it was proven that the wannabe alpha guy was in fact a pussy.
Now I'm not saying the girl did the right thing by slapping him, but she was in her character."