Dharmesh is cruel and a very bad businessman with no heart.
I don't support any slaps in any serial or movie. You just can't show that violence is ok even if the other person is cruelly/ terribly wrong. There is a way to deal with it
Defending yourself is Ok but incase the other person is not hurting you physically, there is no excuse for hitting right?
just my opinion sorry if I offended:-)
Anyway, it was a serial and I hope Dharmesh pays for whatever he is doing to innocent Manav and others. His Karma should take care of that.
All this said, I am yet to see that episode:-)