ashwin dude its actually a very normal thing for the instructor to ask for a "tip" I gave my driving instructor a tip too but here's the thing, my instructor was asking for 1000 bucks and i went WTF? Just tell him that you will give him a tip after you pass and not before, if you pay him anything now he's not really going to care about you passing or failing, if you tell him you'll give him something after you pass he'll continue to give you valuable tips on what to do during the exam. DO NOT PAY him anything until you get your license in hand.

Also like you said he has nothing to do with you getting or if he said he'll help you get your license or anything thats just bull crap dont believe it. Its totally out of their hands. To answer your question about how much you should give him Qr.200 is more than enough. Nothing more, however dont tell him how much you are going to give him just put it in his hands after you get your license and walk away. Then meet me at Costas coffee for my TIP err i mean treat :p

Good Fortune always comes knocking at your door...when you are sh*tting in the toilet!! :)

_[]~SMoKE~[]_

 http://www.skamu.com/icons/animated/images/icon41.gif"