#IndiaFightsCorona: 3 vaccines are at clinical trial stage in India. Cadila &amp; Bharat Biotech have completed phase-I trials. Serum Institute has completed phase II-B3 trials and will start phase-III trial (with 1500 patients at 14 locations) after clearances: DG @ICMRDELHI https://t.co/BXy9ZTJZjL