New Delhi:06 Feb 21 The COVID-19 vaccination for frontline health workers, police personnel, civil defence staff and municipal workers started in Delhi on Thursday. There are a total of six lakh frontline workers in the national capital.NDTV visited east Delhi’s Rajiv Gandhi Superspeciality Hospital where frontline workers started queuing up from morning and expressed relief on being vaccinated after a tough year in which they worked round the clock in the midst of the pandemic.