Work Experiences


  • Visiting Professor, School of Engineering, Indian Institute of Technology, Mandi,India, (August 2018 - present)
  • Professor, Environmental Engineering and Management, Asian Institute of Technology, Bangkok, Thailand, (May 2004 - present)
  • Director, UNAIT, AIT-UN Office, Asian Institute of Technology, Bangkok, Thailand, (Septmeber 2008 - 2012)
  • Associate Professor, Environmental Engineering and Management, Asian Institute of Technology, Bangkok, Thailand, (April 1995 to May 2004)
  • Research Scientist, Meat Industry Research Institute, MIRINZ, Hamilton, New Zealand (September 1993-March 1994)
  • Postdoctoral Fellow, Department of Process and Environmental Technology, Massey University, Palmerston North, New Zealand, (May 1991 to September 1993)
  • Humboldt Research Fellow, Alexander von Humboldt Foundation, Institut fur Verfaharens Technik, Technische Universitat Berlin, Berlin, Germany, (June 1989 - April 1991)
  • Senior Engineer, Western India Industries, Poona, India (September 1987 - May 1989)
  • Senior Research Engineer, Paramount Pollution Control, Baroda, India (January 1987 - August 1987)
  • Senior Project Engineer, Worked for Doctoral Degree on Application of Fixed Film Anaerobic Technology for Treatment of Industrial Wastewaters, Indian Institute of Technology, Bombay, India (March 1982 to December 1986)
  • Junior Research Engineer, Hindustan Lever, Bombay, India (August 1979 - March 1982)