Prof. Praveen Kumar Ramanujam is Head of the Biotechnology Department, Arunai Engineering College, Tamilnadu, India. He is also Director, Institute of Innovations, Tiruvannamalai. His area of research includes biorefineries, renewable energy from biomass and municipal waste. He has published a number of articles in peer-reviewed journals and registered for 4 patents, edited 4 books. Professor Praveen has chaired 4 International conferences and organized various national level symposiums and conferences. He is also lifetime member of several professional societies including Biotech Research Society of India (BRSI), Indian Institute of Chemical Engineering (IICHE), International Forum on Industrial Bioprocesses (IFIBiop), Biogas Forum of India (BigFin), Indian Society for Technical Education (ISTE), Engineers Without Borders, India (EWB-India). He is serving as Management council member in BRSI and served as Vice-President in EWB-India, Chennai chapter. Prof. B.Bharathiraja is working as Head of Department for Chemical Engineering, Vel Tech High Tech Dr.RR Dr.SR Engineering College, Chennai. He has 14 years of experience in teaching and his areas of research include Biofuels from biomass, biorefineries, enzyme engineering, bioprocess engineering and municipal waste treatment. He had published more than 70 publications in peer reviewed journals, 2 books and 7 book chapters. Served as Chief Editor of International Journal of Bioprocess Technology and polymer sciences and also as editorial board member in various journals.