Khubsoorat is a 1980 Indian Hindi film directed by Hrishikesh Mukherjee with dialogues by Gulzar. The film won the 1981 Filmfare Best Movie Award. The lead actress, Rekha, won her first Filmfare Best Actress Award for her role as Manju Dayal. Nirmala Gupta (Dina Pathak), wife of Dwarka Prasad Gupta (Ashok Kumar), runs her household very strictly. While most of her family resent this, they obey her instructions to be on her good side. Things start to change after her second son gets married to Anju. Manju (Rekha), Anju's sister, comes over to stay for a few days with the Gupta family. Manju resents the way Nirmala treats people and feels some permanent changes are needed in the household.Wikipedia
There's a lot that's painfully unmodern in Khoobsurat and depending on your background, it will feel either ridiculously old-fashioned or sadly constant.