Explanation: By the 12th century, the Sufis were organised in Silsilahs (i.e., orders, which basically represented an unbreakable chain between the Pir, the teacher, and the murids, the disciples).

The four most popular Silsilahs among these were the Chistis, Suhrawardis, Qadiriyahs, and Naqshbandis.

Source: Poonam Dahiya