Cost of living in Poznan (Poland) is 47% more expensive than in Alwar (India)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 307 prices entered by 48 different people.
For example, you would need at least ₨49,874 (2,605 zł) in Poznan to maintain the same standard of living that you can have with ₨34,000 in Alwar.