Actress Vidya Balan, who was declared the best actress for playing a sex symbol in "The Dirty Picture" at the 59th National Awards Wednesday, said she is still trying to believe that she has won the prestigious trophy.

"I want to believe it..long cherished dream has come true.... my first...I don't know what to say....I want to thank director Milan Luthira for giving me this film.

This is really unbelievable...It is the biggest honour of the ocuntry...it is very speical...every award is special," Vidya, 33, told CNN-IBN after winning the award.

Produced by Ekta Kapoor, the unofficial biopic of the southern sex siren Silk Smitha not only rocked the box office and set the cash registers ringing, it also won the maximum popular awards.

"As the role is concerned, it really required mentally to be totally uninhibited...the film's success has opened a lot of opportunities especially the kind of roles for the female actors.

It is very nice to see that the line between so called meaningful cinema and commercial has blurred," said the actress.

The National Film Awards committee on Wednesday announced the list of the winners for the 59th National Film Awards.

Girish Kulkarni has bagged the Best Actor award for Marathi film Deool.

The Best Hindi Film is "I Am" by director Onir, while Anjan Dutta's 'Ranjana Ami Aar Ashbo Na' won the Best Bengali Film award.

Best Feature Film award was shared by Marathi film Deool and Kannada film Byari.

Shah Rukh Khan's Ra.One clinched the award for Best Special Effects.

List of the winners:

Best Feature Film: Shared by Deool (Marathi) and Byari(Kannada)

Best Bengali Film: 'Ranjana Ami Aar Ashbo Na' directed by Anjan Dutta

Best Hindi Film: 'I AM' directed by Onir

Best Film Critic: Manoj P Pujari

Best Book Award: Anirudha Bhattacharjee and Balaji Vittal for the title 'R.D. Burman The Man, The Music.'

Best Lyrics: Amitabh Bhattacharya for 'I AM'

Best Actor: Girish Kulkarni for ‘Deool'

Best Actress: Vidya Balan for 'The Dirty Picture'

Best Costume: Neeta Lulla for ‘Bal Gandharva' (Marathi) and Niharika Khan for 'The Dirty Picture' (Hindi)

Best Choreography: Bosco and Ceaser for 'Zindagi Naa Milegi Doobara'

Best Special Effects: 'RA.One'

Special Jury Award: Anjan Dutta

Best Editing: Praveen KL for 'Aaranya Kaandam'

Best Marathi Film: 'Shaala'

Best Screenplay: Vikas Behl and Nitish Tiwari for 'Chillar Party'

Best Adapted screenplay writer: Avinash Deshpande

Best Dialogue: Girish Kulkarni

Best Female Playback Singer: Rupa Ganguly

Best Male Playback Singer: Anand Bhate for 'Bal Gandharva'

Best Child Artist: Partho Gupte for 'Stanley ka Dabba' and the Chillar Party Group

Best Children's Film: Chillar Party

Indira Gandhi award for debut film director: Thiagarajan Kumararaja for 'Aaranya Kaandam'

Special Mention: Director Shari for 'Adi Madhyantam' (Malayalam Film) and Mallika for 'Byari' (Kannada Film)