From June 21, the Centre will supply COVID-19 jabs to states free of cost to inoculate all above 18 years of age, as announced by Prime Minister Narendra Modi. The Prime Minister sought to point out that the vaccine drive was decentralized because states had complained about disparities. But as we inch closer to June 21, will vaccine hesitancy and availability remain the two biggest challenges still? After PM's announcement of free vaccines for all, are we prepared & have a system in place for a its smooth roll out?