ISLAMABAD: In the corner of a pristine park in an upmarket district of the capital, an open-air classroom run by an aging rescue-worker offers a beacon of hope to the city's poorest.
For the past 30 years, ‘Master’ Muhammad Ayub, whose day job includes defusing bombs and putting out fires, has cycled from his office to the makeshift school to teach children from surrounding slums for free.
There are no walls, no roof and no chairs - and students dutifully rise to move en masse as the sun makes its way across the sky - it…