Question: What award did a film starring Devayani earn in 2000?

Context paragraphs:
Ennamma Kannu: Ennamma Kannu is a 2000 Indian Tamil drama film, directed by Sakthi Chidambaram, starring Sathyaraj, Devayani and Ranjith in lead roles.  The film had musical score by Deva and was released in 2000.

Sadak: Sadak (English: Road) is a 1991 Indian Hindi language romantic thriller film directed by Mahesh Bhatt.  It stars Sanjay Dutt and Pooja Bhatt.  The film is the second highest grossing Hindi movie of the year 1991 and the seventh highest grossing Hindi film of the 90s decade with a groundbreaking musical score.  The film is also fondly remembered for the late (Sadashiv Amrapurkar) award winning performance as the films villain Maharani.  This film was remade in Tamil as "Appu" (2000) directed by vasanth with actor Prashanth and Devayani as a lead role and Prakash Raj acted as a antagonist in this film

Balettan: Balettan is a 2003 Malayalam family drama film directed by V. M. Vinu and starring Mohanlal, Devayani, Harisree Ashokan, Innocent, Nedumudi Venu and Jagathy Sreekumar.  The movie was the biggest hit of 2003 .  It won the Kaveri Film Critics' Award for the most popular Malayalam film of 2003.  The film was remade in Telugu as "Rajababu" with Rajasekhar.  g

Happy Anniversary (1959 film): Happy Anniversary is a 1959 comedy film starring David Niven and Mitzi Gaynor.  Directed by David Miller, the movie's cast also included Carl Reiner and a young Patty Duke.  Duke's next film, "The Miracle Worker", would earn her an Academy Award.

Bharathi (film): Bharathi (Tamil: பாரதி) is a 2000 Indian Tamil-language biographical film starring Sayaji Shinde, Devayani and Nizhalgal Ravi.  It is a biographical film based on the life of Subramania Bharati.  The film was directed by Gnana Rajasekaran and won the National Film Award for Best Feature Film in Tamil for the year 2000.

Cheyenne Autumn: Cheyenne Autumn is a 1964 epic Western film starring Richard Widmark, Carroll Baker, James Stewart, and Edward G. Robinson.  It tells the story of a factual event, the Northern Cheyenne Exodus of 1878-9, although it is told in 'Hollywood style' using a great deal of artistic license.  The film was the last Western directed by John Ford, who proclaimed it an elegy for the Native Americans who had been abused by the U.S. government and misrepresented by many of the director's own films.  With a budget of more than $4,000,000, the film was relatively unsuccessful at the box office and failed to earn a profit for its distributor, Warner Bros.

Debbie Does Dallas: Debbie Does Dallas is a 1978 pornographic film starring Bambi Woods.  The plot of the film focuses on a team of cheerleaders attempting to earn enough money to send the title character to Dallas, Texas, to try out for the famous "Texas Cowgirls" cheerleading squad.  The fictional name "Texas Cowgirls" was seen as an allusion to the real-life Dallas Cowboys Cheerleaders.  Woods had previously tried out for the Dallas Cowboys Cheerleaders in real life, but was cut during auditions.

Devayani (actress): Devayani is an Indian actress who has predominantly starred in Tamil, Telugu and Malayalam films, along with a few Kannada, Hindi and Bengali films.  She received the Tamil Nadu State Film Award for Best Actress for her performances in the films "Surya Vamsam" and Bharathi and a Special Award for "Kadhal Kottai".  She has also appeared in other commercially successful films, including "Aanandham" and "Friends" as well as in the Sun TV series "Kolangal" and "Muthaaram".

Vallarasu: Vallarasu is a 2000 Tamil action film starring Vijayakanth, Devayani, Raghuvaran, Karan, Vadivelu and Livingston.  The music is by Deva.  It was dubbed in Telugu as "Commissioner Narasimha Naidu".  The movie was remade in Hindi as "Indian".  The "New Straights Times" calls the film a blockbuster.

Thotta Chinungi: Thotta Chinungi is a 1995 Indian Tamil-language film starring Karthik, Raghuvaran, Revathi, Devayani and Nagendra Prasad.  The movie was remade in Hindi as "Hum Tumhare Hain Sanam" (2002) starring Salman Khan, Shahrukh Khan, Madhuri Dixit and Aishwarya Rai.

Supporting paragraphs: Devayani (actress) Bharathi (film)
Answer: National Film Award for Best Feature Film