Answer:
(Fatwa: 769/769=J)
Basically, a woman is not allowed to go on Hajj pilgrimage without a mahram. But, if any old woman who has no shahwah (sexual desire) then she can go with other relatives also.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
