Re: Bohri Muslims
Bohris split off from the Ismailis around a century or two ago, as they believed the Aga Khan was deviating from Islam and thus failing in his role as Imam. They elected another man to be Imam in his place.
From talking to a Bohri friend their beliefs are somewhat mixed between Sunni, Ithna Ashari Shia, and Ismaili.
I think their beliefs don’t obligate a single way of praying as being solely correct, so when they are with Sunnis they pray our way, when they are Ithna Ashari Shias they pray that way, and when they are amongst their own community they pray their way.
I was once at an iftaari in Ramadan where a Bohri friend mentioned that they had prayed Maghrib in 3 different ways in the past 3 days, due to going to 3 different mosques with 3 different groups of friends (Bohri, Ithna Ashari, and Sunni)