Covid vaccination drive has begun in Delhi.As many as 3,500 health workers have been identified and are being trained in the national capital to carry out the vaccination process.Also Read | Finally, good news on white-collar jobsAccording to the Arvind Kejriwal-led Delhi government, 1.8 lakh to 2.25 lakh health care workers will be vaccinated in the first phase of the drive, for which 609 cold chain points have been identified in all the top hospitals and Mohalla clinics across the city.Dr Suneela Garg of Maulana Azad Medical College, appointed as the public health expert under the Covid-19 vaccination programme and also an advisor to the ICMR in Delhi, has reportedly said: "The training drive started on Monday.