Heroine movie similar to Kangana Ranawat

Today I saw Madhur Bhandarkars Kareena starrer Heroine. 

Felt her character is similar to Kangana's life,

Maybe not all aspects, but quite a few things. 

the only difference is no one can save Kangana & she can’t save herself either. Mahi had lost her way but she was not mentally ill.   

Why did she lose her way? Just because she refused to sleep with that male star and opted to act in the indie film afterwards? That doesn't really seem fathomable. 

I don't remember the plot line completely but she kind of felt depressed in between.

naah....i believe kangana was damaged goods even before she entered bollywood. She has been falling out with ppl since her first movie.