India does not have enough Covid-19 vaccine doses to vaccinate the entire country, or even the groups of people who must be vaccinated in the government's recommended timeframe. There are not enough vaccines to distribute within cities, across the country and across age groups. This compounds the problem of Covid-19 spreading faster, or coming back in new waves. Another set of problems is that the Indian variant--the B.1.617 mutation of the SARS-CoV-2 virus--seems to be spreading very fast not just in India but also in other parts of the world. What do we know about this mutation? What can we understand better about how it will spread? Given where India stands on vaccine supplies and the likely pace at which these will be rolled out, what do we need to do next? About 191 million Covid-19 vaccine doses have been administered in India as of May 22, but of this, only 41.5 million (3%) of a 1.3 billion-plus population are fully vaccinated with two doses, which is not enough.