ChamanlalDr. Chaman Lal Gupta is a highly reputed scientist, both nationally and internationally, in the field of solar energy. A teacher by tradition, CLG, as he is fondly called, has been mentoring students and researchers for more than five decades at the Sri Aurobindo International Centre of Education, Pondicherry. He has been on several committees of the Government of India, setting up the Ministry of New & Renewable Energy Sources. He was Founder Director of Tata Energy Research Institute, Field Research Unit based out of Pondicherry in the early 1970s.