Actress Vidya Balan prefers to maintain silence on reports that she has been approached to portray Pakistan's former prime minister Benazir Bhutto in an upcoming biopic. She says "many biopics" have come her way.

Asked about the reported project, Vidya said: "Even I have heard that I am doing some films this year, but I don't know actually ... many biopics have been offered to me.

"I have not decided anything yet. So I would not like to say anything about any biopic right now."

Vidya, who portrayed Silk Smitha in "The Dirty Picture" in 2011, won the Best Actress National Film Award for her performance.