For electronics and vehicles you are free to google iphone and mercedes prices in India vs Us. Its especially higher if I want specific items to import like framework laptop, fairphone, tesla car
Private education can get very expensive very quickly too. Public schools are not even an option as they don't even have furniture sometimes.
You might say remaining costs are low, but they are low only if we use uncertified, unskilled, low quality services/labor. For even decent quality of work the prices will be in multiples.
About my comment about being payed half, the pay scales are visible to everyone in the company so I know that the least in the US also gets payed 2x of my location
I don't know any company that has a location based pay differential that ranges into 50%.
I know these as a fact that a comparable property in my city would cost me much more than what you're paying. All the while I'm getting payed less than half of my colleagues living in your area.
And there are many other costs that are comparable eg. electronics, vehicles and education.
All this is to say that location based pay is not about cost of living, its about getting away with paying as little as possible.