Namak Halaal is a 1982 Indian Hindi-language masala film, directed by Prakash Mehra and written by Kader Khan. The film stars Shashi Kapoor, Amitabh Bachchan, Smita Patil, Parveen Babi and Waheeda Rehman. From Wikipedia
Prateik Babbar recounts a 1982 incident where Smita Patil chose to eat on the floor with crew despite Amitabh Bachchan’s objections, highlighting her humility and egalitarian ethos.