I am, Principal Scientific Officer at Institute of Fuel Research & Development (IFRD) of BCSIR, a researcher in resource recovery from waste biomass by anaerobic digestion process and preparation of value added product through pyrolysis and briquetting of biomass. I am also actively involved in the project for development of need based improved cook stoves to suit the requirements of end-users taking into account, different biomass fuel types, shapes of cooking pots and cooking habits in Bangladesh and their performance studies. I have been doing research in the field of anaerobic digestion for more than 8 years. My experience spans anaerobic digestion of cattle dung, poultry liter, co-diges