I dont like the way he talks to mahua/Rajeev. Mahua is always so concerned about him, whether he needs something or not, whether he is able to relate to his new home. Did u see the scene when she lovingly puts the blanket on him and bids him goodnight.She really loves him and always feels guilty for not being able to be with him. We know for Rajeev he had to stay away from his real parents for years but that doesnt mean Mahua is not his mum, maybe she dint raise up him but she had carried him in her womb, doesnt it matter to him???
Now when he knows the truth dont u think he should give equal respect to this mum as well? Why is he being so rude to her when mahua wasnt even aware that her baby was switched.He is no more the King Of Banaras, he acts weird nowadays.