Qasim Khan ZainuddinSyedna Qasim-Khan Zainuddin was the 31st Dai of the Dawoodi Bohras. He succeeded the 30th Dai Syedna Ali Shamsuddin to the religious post.LifeSyedna Zainuddin became Da'i al-Mutlaq in 1056 AH/1646 AD. His period of Dawat was 1042–1054 AH/1634–1646 AD. He served five of his predecessors.LineageSyedna Qasim-Khan's ancestry is traced back to Maulaya Abdullah and Syedi Hasan Feer.BurialHe is buried in Mazar-e-Qutbi in Ahmedabad.