I read the following message from Khalid: http://www.canadavisa.com/canada-immigration-discussion-board/pakistani-applicants-waiting-for-ppr-stage-1-or-2-letters-from-chc-london-t66770.1635.html
"I cannot pin point but Toronto and missisuaga has 40 masjids, Thornhill in missisuaga has pakistanis 50% of the population, which is great, we will need to find it out there, one school of thornhill is among top 10 in toronto area.
If school is little bit far, still children will go, but if masjid is far children and parents both will not go, so I will suggest to look near masjid. I have a friend living in London its an hour drive from Missisuaga there is only one masjid in the city, so what culture do you expect there ? we should avoid that type of places".
Will keep searching..