[Retric]

India’s per capita PPP is ~6k$ USD per year, but it’s not equally distributed. Ignoring economic growth and assuming a population distribution that eventually looks like the US (16% of the population over 65) allocating say 8% of GDP to the elderly would provide a standard of living better than most of them had 20 years ago and in fact many would see an income bump at retirement.

Of course that doesn’t pay for significant medical care etc, but I also ignored economic growth. By the time India has US style age demographic breakdown things should look significantly better.