It relates to his research in energy
Bharat Ratna Professor C.N.R. Rao has been selected for the International Eni Award 2020 for research in energy frontiers. This is considered to be the Nobel Prize in energy research.
Professor Rao has been working on hydrogen energy as the only source of energy for the benefit of all mankind. Storage, photochemical and electrochemical production of hydrogen, solar production of hydrogen and non-metallic catalysis were the highlights of the work.