Haider Ali Biswas is currently affiliated with Khulna University, Bangladesh as a Professor of Mathematics under Science Engineering and Technology School and holding the position "Head of Mathematics Discipline". Prof. Biswas obtained his B Sc (Honors) in Mathematics and M Sc in Applied Mathematics in the year 1993 and 1994 respectively from the University of Chittagong, Bangladesh, M Phil in Mathematics in the year 2008 from the University of Rajshahi, Bangladesh and Ph D in Electrical and Computer Engineering from the University of Porto, Portugal in 2013. He has more than 15 years teaching and research experience in the graduate and post-graduate levels at different public universities in Bangladesh. He published two books and more than 50 research papers in the peer reviewed journals and international conferences. Prof. Biswas has worked at several R & D projects in home and abroad as Principal Investigator (PI) and/or Researcher. His present research interests include Optimal Control with State/Mixed Constraints, Nonsmooth Analysis, Differential Equations, Population Dynamics, Mathematical Modeling, Mathematical Biology and Biomedicine, Epidemiology of Infectious Diseases. He is life/general members of several professional societies and/or research organizations like Bangladesh Mathematical Society (BMS), Asiatic Society of Bangladesh (ASB), Institute of Mathematics and its Applications (IMA), European Mathematical Society (EMS) and Society for Mathematical Biology (SMB).