Tamil Nadu Government will not be flagging off the third phase of vaccination from today as the state is yet to receive 1.5 crore doses it had ordered from the Serum Institute and Bharat Biotech. With the state's daily Covid tally nearing 20,000, Tamil Nadu Health Secretary Dr J Radhakrishnan spoke to NDTV's Sam Daniel on the state's challenges including shortage of beds, strategy and on criticism that the government had let it loose during recent poll campaign though it had effectively contained the spread earlier. He also explains that all people - testing positive for Covid- don't need hospitalisation and that "a Covid screening centre should be the first stop for non-emergency cases for an evaluation".