Question: How many National Film Awards did this Indian film actor, director, screenwriter, producer, playback singer and lyricist who appeared in Apoorva Raagangal win?

Context paragraphs:
Filmography of Shreya Ghoshal: Shreya Ghoshal (born 12 March 1984) is an Indian playback singer.  She has received four National Film Awards, six Filmfare Awards including five for Best Female Playback Singer, nine Filmfare Awards South for Best Female Playback Singer (two for Kannada, four for Malayalam, two for Tamil and one for Telugu), three Kerala State Film Awards and two Tamil Nadu State Film Awards.  She has recorded songs for film music and albums in various Indian languages and has established herself as a leading playback singer of Indian cinema.

S. P. Balasubrahmanyam: Sripathi Panditaradhyula Balasubrahmanyam (   ; born 4 June 1946) is an Indian film playback singer, actor, music director, voice actor and film producer.  He is mostly referred to as S. P. B. or Balu.  He has won the Guinness World Record for recording the highest number of songs.  He has garnered six National Film Awards for Best Male Playback Singer, and twenty five Nandi Awards for his works towards Telugu cinema.  In 2012, He received the Andhra Pradesh state NTR National Award for his contributions to Indian cinema.

Shreya Ghoshal: Shreya Ghoshal (born 12 March 1984) is an Indian playback singer.  She has received four National Film Awards, six Filmfare Awards including five for Best Female Playback Singer, nine Filmfare Awards South for Best Female Playback Singer (two for Tamil, four for Malayalam, two for Kannada and one for Telugu), two Tamil Nadu State Film Awards and three Kerala State Film Awards.  She has recorded songs for film music and albums in various Indian languages and has established herself as a leading playback singer of Indian cinema.

National Film Award for Best Lyrics: The National Film Award for Best Lyrics (the Silver Lotus Award) is an honour presented annually at the National Film Awards by the Directorate of Film Festivals (DFF) to a lyricist who has composed the best song for films produced within the Indian film industry.  The award was first introduced at the 16th National Film Awards in 1969.  It was intermittently awarded till the 22nd National Film Awards (1975).  From then on, no award was presented until the 32nd National Film Awards (1985).  However, since 1985 every year the award has been presented with the exception of the 34th National Film Awards (1987).  As of the 62nd National Film Awards (2015), the DFF has presented a total of 36 awards to 24 different lyricists.

List of Bengali songs recorded by Shreya Ghoshal: Shreya Ghoshal sings in Hindi and Kannada films as well as in other Indian regional languages such as Assamese, Bengali, Gujarati, Malayalam, Marathi, Oriya, Punjabi, Tamil and Telugu.  She also has sang on Nepali songs.  She has received numerous awards and nominations including four National Film Awards for Best playback singer, four "State Film Awards", six Filmfare Awards (five for Best playback singer) and nine Filmfare Awards South.  She established herself as a leading female playback singer of Indian cinema.

Rajinikanth: Shivaji Rao Gaekwad (born 12 December 1950), known by his mononymous stage name Rajinikanth, is an Indian film actor, who works primarily in Tamil cinema.  He began acting in plays while working in the Bangalore Transport Service as a bus conductor.  In 1973, he joined the Madras Film Institute to pursue a diploma in acting.  Following his debut in K. Balachander's Tamil drama "Apoorva Raagangal" (1975), his acting career commenced with a brief phase of portraying antagonistic characters in Tamil films.

Apoorva Raagangal: Apoorva Raagangal (English: "Rare Melodies" ) is a 1975 Indian Tamil-language drama film directed by K. Balachander.  The film features Kamal Haasan and Srividya in lead roles while Rajinikanth (in his cinematic debut), Jayasudha, Nagesh, and Major Sundarrajan play supporting roles.  The film was produced by V. Govindarajan and J. Duraisamy under the production banner Kalakendra Films.  The soundtrack and score were composed by M. S. Viswanathan while the lyrics for all tracks were written by Kannadasan.

B. S. Lokanath: B. S. Lokanath (c. 1937 – 2011) was an Indian cinematographer who worked in Tamil, Telugu, Kannada and Hindi films.  He is well known as the cinematographer of K. Balachander and has worked in 55 films with him.  During his career, he won the National Film Award for Best Cinematography for "Apoorva Raagangal" (1975) and the Tamil Nadu State Film Award for Best Cinematographer for "Ninaithale Inikkum" (1979).  He died of a heart attack in Chennai on 9 December 2011.

Kamal Haasan: Kamal Haasan (born 7 November 1954) is an Indian film actor, director, screenwriter, producer, playback singer and lyricist who works primarily in Tamil cinema.  Kamal has won several film awards including three National Film Awards, the second-most by any Indian actor, and nineteen Filmfare Awards.  His production company, Rajkamal International, has produced several of his films.

K. S. L. Swamy: Kikkeri Shamanna Lakshminarasimha Swamy (21 February 1939 – 20 October 2015), popularly known as K. S. L. Swamy / Lalitha Ravee / Ravee, was an Indian film director, producer, actor and playback singer.  He entered cinema at an early age as an assistant to popular directors of the time such as G. V. Iyer and M. R. Vittal.  He debuted as an independent film director with the 1966 film, "Thoogudeepa".  His other films such as "Gandhinagara" (1968) and "Bhagya Jyothi" (1975) and "Malaya Marutha" (1986) proved successful.  His 1989 film "Jamboo Savari" won the National Film Award for Best Children's Film at the 37th National Film Awards.

Supporting paragraphs: Apoorva Raagangal Kamal Haasan
Answer: three