 Noor-ud-Din wrote "Tasdeeq Barahin-e-Ahmadiyya".After the death of Mirza Ghulam Ahmad, Noor-ud-Din was unanimously elected as his first successor.Among his achievements as Caliph were overseeing a satisfactory English translation of the Qur'an, the establishment in 1914 of the first Ahmadiyya Muslim mission in England and the introduction of various newspapers and magazines.