Entire video of Dmart marathi incident which happened.

From a perspective of native mumbaikar.

Talk politely with everyone in mumbai as people are polite here and shouting and disrespect would not be tolerated.

As you can see in the video the guy was inviting for trouble by repeatedly saying "jo karna hai karle".

The attitude check he gets when he was ganging up on the customer and when he gets ganged up he becomes bhigi billi.

This ain't delhi or UP where talking rudely is a norm , this is clear sign of disrespect and will advise non natives to have such kind of behavior.