A day before Covid vaccine booster shots become available to all Indian adults, the prices of Covishield and Covaxin at private hospitals have been slashed by more than half. Both the vaccine doses will now cost Rs 225. While Covishield has been slashed from Rs 600, Covaxin is down from Rs 1,200 per dose. Serum Institute of India CEO Adar Poonawalla and Bharat Biotech cofounder Suchitra Ella made the announcement on Twitter today. The decision was taken after discussions with the Centre. Mr Poonawala had told NDTV yesterday that Covishield will cost Rs 600 plus taxes (same as before).