He was also the former Vice Chancellor of Jamia Millia Islamia, Secretary of the Department of Ocean Development and the founder of Polar Research in India.[326] Other prominent Muslim scientists and engineers include C. M. Habibullah, a stem cell scientist and director of Deccan College of Medical Sciences and Center for Liver Research and Diagnostics, Hyderabad.[327] In the field of Yunani medicine, one can name Hakim Ajmal Khan, Hakim Abdul Hameed and Hakim Syed Zillur Rahman. Salim Ali, was an Indian ornithologist and naturalist, also known as the "birdman of India".