Nayanika says she has recently worked in a commercial of Scooter Incense Sticks, which is a reference to "Cycle Incense Sticks", an actual brand in India.
Shaan (1980) and Deewaar (1975), both the films that Gaitonde mentions feature Amitabh Bachchan, Shashi Kapoor, Parveen Babi.
The hospital scene at the beginning before the intro is an one cut scene.