What key details about mahmut ustaosmanoglu can be extracted from the following bio? Bio: mahmut ustaosmanoglu , usually referred to as '' mahmut efendi '' and known to his disciples as '' efendi hazretleri '' , is a turkish sufi sheikh and the leader of the influential Ismailaga naqshbandi sect centred in Carsamba , istanbul .
- birth date is 1931- name is mahmut ustaosmanoglu- birth place is mico village , of , turkey- religion is sunni , sufi islam- occupation is leader of the Ismailaga naqshbandi sect