Addressing the words in bold: There's no way a 6 year old boy is a part of such a strategic conspiracy willingly and somebody has done something to him to make him like this. Some kind of psychological manipulation has been used on the boy to make him adopt abhimanyu's mannerisms, behaviour, attitude and memories to the point that the boy himself starts to believe the illusion that has been created. I have watched enough episodes of criminal minds and other crime shows that have dealt with this sort of mind manipulation and personality swaps to come up with this conclusion. It seems that indian tv wants to present this theme to the indian audience who have neither seen or heard of such a thing, because it seems weird.The scene from the bathroom and the words that abhi's reflection said to the boy were actually the boy's subconscious mind, where it seems the boy's mind is escaping the brainwashing/ hypnosis/ programming trained into him but at the same time whatever has been done to him overrides his subconsciousness and reminds him he can't ruin this illusion that has been created of him being abhimanyu, hence the words "no matter what anybody says you are not priyam but abhimanyu".This boy has been abused mentally to fulfill someone's vendetta that is for sure, rather than being a willing and knowing participant of this conspiracy.