Actors Kay Kay Menon and Shahid Kapoor enjoyed each other's company way too much. They had reunited on set after their previous film together, 'Haider' which released in 2014.
Both the shows 'Farzi' and 'The Family Man' have a crossover moment when Michael, played by Vijay Sethupathi, calls Srikant Tiwari, played by Manoj Bajpayee, to acquire intel for nabbing Bilal in Bangladesh.
The 'pav bhaji' scene between Sunny and Mansoor was Kay Kay Menon's first day on set.
Shahid Kapoor's last day on set was shot at Kay Kay Menon's, aka Mansoor's house.
The restaurant-gunpowder scene is where Sunny and Megha meet for the first time. This was also the first day of Shahid Kapoor, who plays Sunny, and Raashii Khanna, who plays Megha, shooting together.