Nawab Zain Yar Jung Bahadur (Zainuddin Hussain Khan), was born at Hyderabad on 15 January, 1889. He did his higher studies in England and was appointed as the Executive Engineer in charge of the Royal Palaces Division. In 1930 the Government of Hyderabad commissioned him to design the Osmania University under the guidance of the famous Belgian architect Jasper. Besides Osmania University he designed and built many beautiful mosques, temples and gurdwaras.
 
In 1939 he was appointed as the Chief Architect of the State. In 1944 he was appointed as the Minister for Public Works & Commerce & Industries. In 1947 he became Nizam's Agent General in Delhi.  
 For his valuable services as an architect he was awarded Padma Bhushan on 6th October, 1956.