In reply to Masood: Cheers Masood - I think the link between the language and nationalism is one of those thing I once knew and have since forgotten (probably read it in "Freedom at Midnight" which I read on long train journeys through India many moons ago! Oddly, again thats very much like Finnish - a language which was really only written down and formalised from various different dialects only with the rise of Finnish nationalism under Russian imperial rule. Until then the educated classes spoke Swedish, Russian, German and French - seemingly anything but the 'peasents language'! I looked up on Wikipedia what languages Jinnah spoke:
"At home, the family's mother tongue was Gujarati, but members of the household also became conversant in Kutchi, Sindhi and English" which really makes your point about Urdu's "manufactured" nature.