Comparing dollar prices in isolation makes almost no sense. You need to at least look at average/median monthly income and compare via some normalized metric, like a variant of Purchasing Power Parity [1] .
Even if you do this, comparisons are hard. Completely different economies, market structures and target groups, subsidies, taxation, regulation, etc can all have a big effect.
Looking at India, it has a GDP per Capita that's 1/8 of the US, and an average monthly income of 150$!
That should give you a measure for how 10$ in India are very different from 10$ in the US.