It is already heard that Vidya Balan is soon going to be seen in a biopic on M.S. Subbulakshmi, the famous carnatic singer (read news). Now, the buzz is that besides Vidya, another actress will be roped in as well.

The film that has two leads, has roped in another famous star that is Deepika Padukone to play Vidya's sister. This movie is not about a solo-actor, but it has two leads that have important roles to play.

Since Deepika has a wide range of experience from the varied genre of films that she has done, the filmmakers thought she is the best who could reprise the role of Subbulakshmi's sister Bala.

Though things are not finalized yet, Tamil filmmaker Rajiv Menon who will be making the film is very keen on bringing Deepika on board.

In the meanwhile, Vidya is busy reading the script and confirming all the details. The actress is not letting out any information, but she does confirm stating, "I can't reveal much as I'm bound by a contract. All I can say is that I'm doing one (a biopic)."