I found an article from NY Times, dated September 17, 2021 that talked about an 'explosion' of cases ... but didn't find anything else substantiating that so I don't know if it's accurate. https://www.nytimes.com/article/india-coronavirus-cases-deaths.html
I think one shot will help in the short term at least, as it does confer something like 60% protection, IIRC.
But if the virus will burn itself out shortly everywhere, that would be great.
I shamefully admit I still don't know how to post pictures on this forum but the page below the graph I'm talking about of the number of cases. They went from 400k/day to ~15K/day... Death graph followed the same pattern.
BC is much more vaccinated, less crowded with more people having access to good hygiene but Delta has kept us steady. It makes zero sense.
https://www.worldometers.info/coronavirus/country/india/