Come on he is a father and doesn't want to see his daughter suffer, what's exactly wrong with this.He has every right to throw it back onto ishwari's face for the sake of his only Daughter.
In my opinion he is one of a hell best father, protective and sarcastic.I really loved his sarcastic and snarky remarks.He earlier even stated that he wanted to observe the behavior of Dixit's, he doesn't want to rush off with Sona's wedding.
Comparing Bijoy to Ishwari is kinda upsetting, he isn't obsessively possessive is Sona, he is just looking for the right guy.He doesn't want Sona to keep for himself only or to not to share her love
He is that kind of father who cannot see a tear in his daughter's eye.
That was quite a good show he put up there...
Probably the best father ever with sarcasm