It's hard to convert PP directly because it's different for different goods - the measurements usually use a basket of multiple goods and services. It's possibl

It's hard to convert PP directly because it's different for different goods - the measurements usually use a basket of multiple goods and services. It's possible that e.g. eggs in India are relatively expensive, while lentils are cheaper, but if we calculated PP using the two items then it would be somewhere in the middle: a PP-adjusted $2 portion of lentils would still be bigger in India than we would expect from looking at overall PP. This may or may not be what the GP was trying to say.