India on Tuesday took the first big step in its lead up to the massive Covid vaccination drive scheduled for January 16 on Tuesday as the Serum Institute dispatched 100s of vials of the Covishield vaccine. 56 lakh doses of the Covid vaccine were flown to 13 cities across India from Pune and taken to designated national and state-level stores amid tight security on Tuesday. All the vaccine vials -- 1.1 crore of Covishield from the Serum Institute of India and 55 lakh of Covaxin from Bharat Biotech -- will be received by January 14.