WATCH: Bharat Biotech developed India's first COVID-19 vaccine candidate

Leading vaccine maker Bharat Biotech announced that it has successfully developed COVAXIN, India's first vaccine candidate for COVID-19. In an exclusive interview with ETV Bharat, Dr Krishna Ella, Chairman and Managing Director of Bharat Biotech speaks about challenges of vaccine development, trials involved and the company's commitment to produce the cheapest COVID-19 vaccine in the world.