upto what age can a boy and girl allowed to intermingle? after what age should a boy or girl expected to perform parda?
Answer:
(Fatwa: 1101/935=D/1430)
When a girl reaches adolescence, which is around nine year of age when she feels tended towards the other sex, she should observe purdah and should not meet strangers (non-mahram).
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband