Former Vice-Chancellor and Professor, Mahatma Gandhi University,

Professor of Chemistry, Iran University of Science and Technology

University of Perugia - Civil and Environmental Engineering Department

Professor of Chemistry, Government College University, Faisalabad

Government College University, Faisalabad, Pakistan

Embrapa Agroindústria Tropical

Associate Professor, Damghan Branch, IAU & Visiting Lecturer at Universiti Sains Malaysia

Brain Pool Fellow at Department of Food and Nutrition, Kyung Hee University, Seoul, ROK

University of Perugia - Civil and Environmental Engineering Department

University of Houston/Rice University/Cornell University