A start-up research scholar died and three others were injured in a hydrogen cylinder blast at the Indian Institute of Science (IISc) on Wednesday, police said. Research scholar Manoj Kumar (32) succumbed to severe burns after a hydrogen cylinder exploded in the Institute's aerospace department laboratory during an experiment, Additional Commissioner of Police B.K. Singh told reporters in Bengaluru.

Three of the victim's injured colleagues were rushed to a private hospital. "The incident occurred late in the afternoon in the department lab when the team was conducting an experiment in hypersonic and shock waves," said Singh.