Bollywood Ka Boss: Coming Soon!

Bollywood Ka Boss promos are on air right now - and the show starts on 6 Jan (every Sunday). Apparently, Boman Irani is a Bollywood trivia buff in real life and the promos play on that really well. If the questions of the promos are anything to go by, then we are actually looking at a Mastermind on Bollywood!
Hurray!

Typically, Bollywood questions (whenever they appear on game shows and assorted contests) are purely knowledge-based. If you have seen Roop Ki Rani Choron Ka Raja, then you know that the car which hit Akash Khurana was numbered 7396. If you haven't, then you don't have a hope in hell of answering this question.
Or, who was the first winner of the Filmfare Best Male Playback Singer award? Who knows? And who cares?

But if it is twisted a little bit and asked - Who is the first music director to win a Filmfare Playback award from his composed score - then the little grey cells come into play.
Think. Think. Think.
Who are the music directors who sang - RD, SD... Could it be SD for Mera saajan hain uss paar of Bandini... Could it be RD? Wait a sec, is Kishore Kumar a composer or a playback singer? Did he win any award for Door Gagan Ki Chhaon Mein? What the hell? Why are you going so far back? Isn't it Himesh Reshamaiyya who won it for Aashiq Banaya Aapne? Yes, it is.
And if you completed the above chain of thought in ten seconds or less, then you should have taken a stab at the show.

I was wondering on some interesting question possibilities, a lot of which cannot work out simply because there is no way to verify them.
For example, which was the Hindi movie to show the use of a mobile phone?
Haseena Maan Jayegi - which had Sunil Mittal's favourite song What is your mobile number? - did not show any use of the device, to the best of my recollection. And that film came around 1999. Of course, Deewana Mastana - with the legendary Pappu Pager and Munna Mobile - came even earlier around 1997. But no mobile usage, as far as I can recall.
Karan Johar, a director on the cutting edge of 'cool' in his movies, had no mobile phones in Kuch Kuch Hota Hain (1998) but had one in Kabhi Khushi Kabhie Gham (2001).
In 2000, Kaho Na Pyaar Hain launched not only Hrithik Roshan but also the humble green-backlit, black and clunky Motorola into stardom. The film actually used the mobile phone to further the plot! To my mind, this was definitely a first.
1999 also saw the release of Biwi No. 1 - which had Salman calling his home number from his mobile. I remember the movie released in June 1999, because it was the first movie I saw after joining work (in Chennai)!
So, I would put my money on Biwi No. 1 being th first movie showing use of a mobile phone - unless some one else can come up with a film released between Diwali 98 (that's when KKHH came out) and May 99.

Hai koi jawaab?