Bollywood's vintage diary: Did you know 'Khaike Paan Banaraswala' was not written for 'Don'?

Bollywood's vintage diary: Did you know 'Khaike Paan Banaraswala' was not written for 'Don'? What is the first thing that comes to your mind (as a movie buff) when you recall the cult classic http://www.bollywoodbubble.com/nostalgia/bollywoods-vintage-diary-did-you-know-khaike-paan-banaraswala-was-not-written-for-don/