The 34-year-old actress said the forthcoming film, directed by Suparn Verma and also starring Nawazuddin Siddiqui, gave her ample scope to act.
Bipasha took the plunge into acting 13 years back and her first horror film 'Raaz' happened soon after.
"In fact, I believe I should have done a higher number of ghost stories. I am the one person who had done films of all genres - from negative ones in her debut to something like 'Jism' which no other leading female actors would try. From comedy to thriller I had done everything, which shows I have not been typecast," she said.
"There are very few directors who write good roles for entertainers. But as an actor I certainly wish to do roles that are entertaining," she said.
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Bipasha found an exception in Suparn who, she said, not only gave her a good story, but also a good character worth waiting for.
She said 'Aatma' also taught her the essence of motherhood. "Who knows one day I would be a mother too, and a good mother at that!"
"My role required a lot of emotion. Doyel (the child actor) and I got very attached from day one. You know I had to match every whim of a child. I felt ma hoye kirakam lage (how it feels to be a mother)," Bipasha said at a press meet here.