Prior to this, he has worked as a guest teacher in Aligarh Muslim University, Aligarh. He has published various research papers in national and international repute journals and conferences. He is a life member of some societies such as ISIAM and IMS. He is a reviewer of Mathematical Reviews (USA) and acting as a referee for many reputed journals namely Design Codes and Cryptography, Cryptography and Communications, Quantum Information Processing, International Journal of Information and Coding Theory and International Journal of Quantum Information etc.