Professor, Dept. of Chemistry, Jadavpur University, Kolkata, Indialcutta

Danish Polymer Centre, DTU Chemical Engineering

Associate Professor, Universiti Putra Malaysia

Professor, Analytical Chemistry, Regensburg University-Germany, Qassim University, KSA.

Research Assistant Professor, Department of Chemistry, The University of Tokyo

Institute of Applied Physics CNR, Florence Italy

Profesor Ayudante Doctor, Universidad Autónoma de Madrid

Senior Research Fellow, The University of Burdwan

Postdoctoral Fellow, Southern Methodist University, United States

Assistant Professor, Ghani Khan Choudhury Institute of Engineering and Technology