"Because he knows the Koran, he won't cheat, he won't be corrupt, " Madiha explained.

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Fellow member Madiha al-Naas specialises in gender equality, and told me about the concerns raised since the revolution.

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Madiha Sarwar had to take the language test in Lahore in Pakistan before joining her husband in east London, and says it has given her an advantage over those who did not speak English before they arrived.

BBC: Does migrants' English test split families?