question: When did Dilip Kumar's wife premier in Hamaari Beti Raaj Karegi?
answer: 20 December 2010
context: Title: Hamaari Beti Raaj Karegi
  Passage: Hamaari Beti Raaj Karegi is an Indian television drama series that airs on Sahara One channel.  The series is premiered on 20 December 2010 .  The series starrs known Bollywood actress Saira Banu in an important role.  The show was about to end but it was so popular they decided to give it a second chance.
  Title: Saira Banu
  Passage: Saira Banu (born 23 August 1944), also known as Saira Bano, is one of the most popular Indian Hindi film actresses and the wife of the film actor Dilip Kumar.  She acted in many Bollywood films between 1961 and 1988.
  Title: Deedar (1951 film)
  Passage: Deedar (Hindi: दीदार , "glance") is a 1951 Bollywood Hindi language film directed by Nitin Bose and starring Ashok Kumar, Dilip Kumar, Nargis and Nimmi.  A story of unfulfilled love, when hero's childhood love is separated from him due to class inequalities.  It is one of noted tragedies made in early Hindi cinema.  It became a popular film of the Golden era and further established Dilip Kumar as "King of Tragedy".
  Title: Mashaal
  Passage: Mashaal is a 1984 Bollywood film.  Produced and directed by Yash Chopra, it starred Dilip Kumar, Anil Kapoor, Waheeda Rehman, Rati Agnihotri, Nilu Phule, Iftekhar, Saeed Jaffery, Gulshan Grover, Alok Nath, Madan Puri and Amrish Puri.  The role played by Anil Kapoor was first offered to Amitabh Bachchan and then to Kamal Haasan, but after they declined the offer, the role went to Anil Kapoor.  Vinod Kumar (Dilip Kumar) plays a respected, law-abiding citizen who turns to crime for exacting revenge.
citations: Hamaari Beti Raaj Karegi Saira Banu