Harish Hirani is a distinguished mechanical engineer with extensive experience in design and manufacturing. Currently a Senior Professor at IIT Delhi, he has served as the Director of CSIR-CMERI, where he led groundbreaking projects in sustainable engineering and technology innovation. A prolific author, Professor Hirani has contributed significantly to the field through his influential books, numerous research papers, and intellectual property rights (IPR), earning him international acclaim as a leading scientist. His teaching roles at premier institutions such as IIT Bombay and IIT Delhi, coupled with his impactful contributions to global engineering practices, underscore his unwavering commitment to advancing education, industry, and environmental sustainability.