 After At-Tayyib's disappearance, Arwa named Dhu'ayb bin Musa the first "Da'i al-Mutlaq" with full authority over Tayyibi religious matters.Tayyibi Isma'ili missionaries (in about 1067 AD (460 AH)) spread their religion to India, leading to the development of various Isma'ili communities, most notably the Alavi, Dawoodi, and Sulaymani Bohras.Syedi Nuruddin went to Dongaon to look after southern India and Syedi Fakhruddin went to East Rajasthan.