This movie is based on 2010's Korean film The Man from Nowhere.
The knife fight sequence is heavily inspired from the movie The Raid. It features some pencak silat, a traditional Indonesian martial art form.
It's directed by nishikant kamat (the director of Force, Mumbai Meri Jaan and Drishyam). He acted in this film as well. This is Nishikant Kamat's third film as an actor in a Hindi film.
John Abraham's look in the movie is based on John Wick's. The suit, Dead serious expression etc.
This is the third film in which John Abraham's character name is Kabir. Post this, even Dishoom had his name as Kabir.