For me the point of no turning for Vijay was when he asked Raghav to wash his feet and the drink the water used to wash his feet. He did that not because of anything other than trying to humiliate Raghav and for the sake of his own pride.
His pride even made him almost throw away Millind and his family. I bet the only reason why he is still keeping Millind and his family was because Millind is the sole breadwinner of the family, and he freeloads to that money without any contribution.
C'mon.. he doesn't even pay the bills and didn't have enough money to pay housing tax and it has to be covered by Pallavi. He's a lazy freeloader guy.