Confirming the news, Shaikh Abdeali Bhanpurwala, executive secretary of Syedna, said, "He passed away today due to a heart attack."
The Bohra community has announced a 10-day mourning period for the departed spiritual leader. As a mark of respect, shops run by the Bohras will remain closed for three days.
Syedna was the 52nd Dai (spiritual leader) of the Dawoodi Bohra community. He succeeded his father Syedna Taher Saifuddin in 1965.
Image: Dr Syedna Mohammed Burhanuddin