1. DR. Arya spares the life of Rohit as his retina scan and hearbeat are needed as passwords for the computer. But the computer is already destroyed and a new one has to be made, so wouldnt a new password be assigned to a new computer ??? How can you have a password for a computer which you have to make all over again ?2. In the last scene when the 2 hrithik roshans, rekha and priyanka chopra are standing outside the house and the star kind of thing appears in the sky, Priyanka chopra is looking at the wrong side of the sky and smiling away.
3. Preity zinta's character gets pregnant while rohit is away for 2 years.
4. Priyanka chopra's character wants to touch krishna to see if is a bhoot or no, but a few scenes ago he had saved her while she was paragliding.. well he did touch her then as he saves her life and carries her down from the treetops