Question: Anmol Ratan is a 1950 Bollywood film that co-starred what Indian film actress who is the mother of Bollywood actor Govinda?

Context paragraphs:
Bhaji in Problem: Bhaji in Problem (Punjabi: ਭਾਜੀ ਇਨ ਪ੍ਰਾਬਲਮ ) is a 2013 Indian Punjabi-language comedy film directed by Smeep Kang, who had earlier directed films like "Carry on Jatta" and "Lucky Di Unlucky Story", both of which featured Gippy Grewal in the lead role.  Grewal also appears in this film, along with an ensemble cast including Ragini Khanna, Gurpreet Ghuggi, B.N. Sharma, Karamjit Anmol, Japji Khaira, Khushboo Grewal and Misha Bajwa amongst others.  The film is produced by Ashvini Yardi, and Bollywood actor Akshay Kumar who also appears in the film shortly, enacting as a lookalike of himself.

Mere Do Anmol Ratan: Mere Do Anmol Ratan is a 1998 Hindi film starring Arshad Warsi and Namrata Shirodkar.

Beqasoor: Beqasoor (Hindi: बेकसूर) is a 1950 Bollywood film about a simple girl caught in the cross-fire of a deep-rooted sibling rivalry between her upright husband and her scheming brother-in-law.  The film is directed by K. Amarnath and stars Madhubala.  A moderate box-office success, the film became the seventh highest earning Indian film of 1950, earning an approximate gross of Rs. 90,00,000 and a nett gross of Rs. 50,00,000.

Sangram (1950 film): Sangram is a 1950 Bollywood film about a spoilt child in adulthood directed by Gyan Mukherjee and starring Ashok Kumar.  A box-office success, the film became the sixth highest earning Indian film of 1950, earning an approximate gross of Rs. 1,00,00,000 and a nett gross of Rs. 55,00,000.

Suraiya: Suraiya Jamaal Sheikh (15 June 1929 – 31 January 2004), popularly known as Suraiya, was an Indian Muslim Hindi/Hindustani film actress and playback singer in Bollywood from the 1940s to the early 1960s, who remained unmarried throughout her life, after her love affair with actor Dev Anand was aborted by her maternal grandmother.  She was the most popular singing star of the Indian sub-continent of her generation.  Until 1943, as a child singer, Suraiya did playback singing for one actress, namely Mehtab, in three films, and also in some of her own films for her roles as a child artiste.  After this, she only sang for her own films as an actress, and acted as a heroine from 1946 until the end of her career in 1963.  From 1948 to 1951, she became the singing superstar of Bollywood, earning more for her performances than all the performing actors of the times, male or female, including Dev Anand, Raj Kapoor, Dilip Kumar, Nargis and Madhubala.  She received 1.5–2 lakhs rupees for her role per film, when top male actors were getting 50 thousand to 1 lakh rs.  For a song, she commanded rs. 1000, while Lata Mangeshkar was getting rs. 100–200 per song.  She was the only child of her parents.  She had a natural talent for singing, acting and dancing from childhood.  She received basic training in music when her mother used to take her to a Hindustani music teacher or 'masterji' for training.  She first sang for a children's program for All India Radio in 1937.  Later on Naushad gave her on the job 'training', while recording.  She went on to become one of the most successful singing film stars of Bollywood.  She had received training in dancing from Mumtaz Ali, dancer-actor and father of the famous comedian Mehmood.  She was also known for her North Indian Muslim feudal style acting or 'adakari' in many of her films ("Mirza Ghalib (film)", "Phool", "Afsar", "Shayar", "Jeet (1949 film)", "Anmol Ghadi" and "Dastan").  This style 'endowed modernity with an aura of tradition' and brought nostalgic feudal tinge to the scenes.  Her performance 'expertly integrated gestures, music and speech'.  Suraiya in her heyday was known as 'Malika-e-Husn' (queen of beauty), 'Malika-e-Tarannum' (queen of melody) and 'Malika-e-Adakaari' (queen of acting), all rolled into one.  In a career spanning from 1936 till 1963, Suraiya sang 338 songs in films (which were mostly her own films) and 2 in addition were non-film songs, namely, 'tum rahe kahan ko piya' and 'hum tum karenge pyar'.  She acted in 67 movies, which do not include the incomplete films such as "Jaanwar" (with Dilip Kumar), "Paagal Khaana" with Bharat Bhushan and an Indo-British film on Wajid Ali Shah (1953) being directed by British director, Herbert Marshall, with Ashok Kumar in the role of Wajid Ali Shah.

Vinay Anand: Vinay Anand (Hindi: विनय आनंद ) is an Indian actor, having featured in around 60 Hindi and Bhojpuri movies.  Known for his roles in movies like Dil Ne Phir Yaad Kiya, Sautela, Jahan Jaaeyega Hamen Paaeyega, Aamdani Atthani Kharcha Rupaiyaa, Vinay Anand is also related to Bollywood actor Govinda.

Anmol Ratan: Anmol Rattan (Rare Jewel) is 1950 Bollywood drama film directed by M. Sadiq.  The film was produced by Jaimani Dewan for his Dewan Productions banner, with music composed by Vinod.  The film starred Karan Dewan, who was known as a "jubilee star" with most of his films becoming box-office successes.  He was the younger brother of producer Jaimani Dewan.  Karan's co-stars were Meena Shorey (credited, as she was in all her films, as just Meena), Nirmala, Gope, Madan Puri and Gulab.

Izzatdaar: Izzatdaar is a 1990 Bollywood film and starring Dilip Kumar, Govinda, Madhuri Dixit, Anupam Kher, Shafi Inamdar and South Indian actor Raghuvaran in his Bollywood film debut.

Coolie No. 1 (1995 film): Coolie No. 1 is a 1995 Indian Hindi comedy film directed by David Dhawan.  The film stars Karisma Kapoor, Govinda, Shakti Kapoor, Kadar Khan, Sadashiv Amrapurkar with music by Anand-Milind.  This movie was one of the first successful movie of Karisma Kapoor.  Actor Govinda received the Star Screen Award Special Jury Award for his role in this movie as 'performer of the decade'.  Over the years the movie has become a classic in Indian film history and is now considered a cult film.  The movie is a remake of a 1993 Tamil film "Chinna Mapillai".

Nirmala Devi: Nirmala Devi, also known as Nirmala Arun (died 1996), was an Indian film actress in the 1940s and a Hindustani classical vocalist of the Patiala Gharana.  She is the mother of Bollywood actor Govinda.

Supporting paragraphs: Anmol Ratan Nirmala Devi
Answer: Nirmala Devi