Can't ramp up vaccine production overnight, says SII chief Adar Poonawalla Serum Institute of India chief Adar Poonawalla on Monday said that vaccine manufacturing is a spcialised process and as such the production can’t be ramped up overnight. He further added that his firm has received total orders of over 26 crore doses, of which 15 crore doses have been supplied, and 11 crore doses will be supplied in the next few months. advertisement UPDATED: May 3, 2021 22:00 IST SII CEO Poonawalla said the population of India is huge and to produce enough doses for all adults is not an easy task. (File Photo)