ICMR DG Dr. Balram Bhargava explained the DCGI nod to two Covid-19 vaccines in India. Dr. Bhargava spoke on the various studies done over Covishield and Covaxin. Covishield Oxford-AstraZeneca vaccine which is manufactured at Pune’s Serum Institute of India (SII). Covishield was the first vaccine in India to get the DCGI nod. Soon after, DCGI approved Covaxin.