Answer:
Although Islam does not recognize any castes, Muslim communities in South Asia apply a system of social stratification. It developed as a result of ethnic segregation between the foreign conquerors (Ashraf) and the local converts (Ajlaf) as well as the continuation of the Indian caste system among local converts. The Biradari system is how social stratification manifests itself in Pakistan, and to an extent also India.
Explanation:
