On the verandah, Kishan Singh teaches a young girl her Gurmukhi alphabets. A computer programmer, he claims there are roughly 80 Sikh families in Karachi and on adjacent Manora Island. Around 25 live in Narainpura, alongside Hindu and Christian communities. "At least one family member must remain in government service to maintain the free accommodation-they cannot afford to pay rent," he says. Children tend to quit school early in order to work. But there is a faint silver lining. "Roughly 80 per cent of today's youth can read and write Gurmukhi."