I think it is worth noting that the graph you provide is based on data from 1998, and only includes data for rural india, since Milanovic's study split rural an

I think it is worth noting that the graph you provide is based on data from 1998, and only includes data for rural india, since Milanovic's study split rural and urban india into two separate countries (with good statistical reason). But your claim only holds for a rural india to US comparison in 1998.