I think Nupur is alive and Mayank was just imagining her today.
He tells Nupur that he went to the site, like every year and this year "he" was also there. Nupur replies that "he" as in Samrat? and Mayank confirms that. Mayank then asks why Nupur wasn't there?
This sounds like Nupur is still alive but living off somewhere else. Maybe Nupur is okay (physically and mentally, not emotionally) but Mayur are separated for some reason?
I wonder how they will all meet up. Sam's the trustee of Excel, the college also wants Mayank back (as a engineer prof?) and Nupur as the drama director/teacher?