Complex sentence: Viraj who still does not believe that Jhanvi a.k.a Sia is dead and steals her dead body, and he still thinks she is still alive, and with this incident the show starts focusing on the life of Ananya, to whom Sia's heart was donated.
Split into simpler sentences: Viraj who still does not believe that Jhanvi a.k.a Sia is dead and steals her dead body, and he think her to be still alive. And with this incident the show starts focusing on the life of Ananya, to whom Sia's heart was donated.