Associate Professor in Department of Chemistry / Deputy Director of Academic Affairs: Bioenergy and Biochemical Refinery Technology Program / Faculty Senate of TU Thammasat University

Postdoctoral Fellow University of Kansas, Lawrence, Kansas, USA

Professor of Catalysis RMIT University

Professor Department of Chemistry, University of Delhi

Professor National Research Center

Assistant Professor National Instt. Of Pharmaceutical Edn. & Res.

Researcher Instt. Of Minerals & Materials Tech. Bhubaneswar

Director of Ceramic and Construction Research Group National Metal and Materials Technology Center

Principal Scientist Central Scientific Instruments Organisation