Prof. Raghavan is the Scientific Secretary in the Office of the Principal Scientific Adviser to the Government of India. He is also the Chief Architect of India's National Knowledge Network (NKN) and chairs the Technical Advisory Committee for National Optical Fiber Network (NOFN). Besides, he is the Chairman, Board of Governors of Indian Institute of Information Technology (Design and Manufacturing), Jabalpur, India.
He is the Chief Editor of the Journal, CSI Transaction on ICT, being published by Spinger worldwide. He is the recipient of the Outstanding Alumnus award by Anna University, the Silver Core Award by International Federation for Information Processing (IFIP) and Doctor of Science (Honoris Causa) by Uttarakhand Technical University. His interests are in Large Scale Network Design and Cyber Security.