Hizb ut Tahrir organized public talks in front of several mosques across Dhaka, Chittagong and Sylhet after Jummah prayers today to commemorate the destruction of the Khilafah "Caliphate" state on the 28^th of Rajab 1342 Hijri (3^rd March, 1924 CE) by the hateful Mustafa Kemal in collaboration with the malicious West.