About religeios beleif i dont know but i heard they are rich people,.

As to what I know according to some muslims, Only Sunni muslims are real muslims, rest are all kafirs.

The Bohra Muslims' belief in Allah contrasts sharply with the variety of faiths that make up the mosaic of religion in India. Bohra Muslims were an upper-class Hindu caste before converting in the 11th century."Salvation" for Bohra Muslims occurs as a result of their religious hierarchy and obedience to religious laws and leaders. Recent claims of abuse by the Syedna have brought about reform movements.In many cases, the Syedna's decisions regarding women's clothing are disregarded in the pursuit of fashion. With the relaxing of the dependence on the Syedna's decisions, social and religious change is an inevitable force in the life of the Dawoodi Bohra people.Bohras engage in religious conversation, but secretive attitudes regarding their personal lives prevent real change.

Not much except they are lie Muslims but instead of Mohd sahabs teaching that he is the last prophet they worship there own religious leader too..who his Saiyadna sahab....there is some ASgar ali Engineer who differs them in some issue

Highly enterprising and harmless for other community.