According to Google, Cuba's GDP per capita is $9500 (in 2020). That's more than Mexico, and 4 times more than India. But
Worldometers.info shows N/A, so I believe the exchange rate can be a tricky thing in this case. If there's no free exchange of currency, you can't compare it in dollars.
Both sources, Google and Worldometers.info, do not have to provide accurate information about the real situation in countries like Cuba. They have the data that the local regime passed on to them after the adjustment. It is enough to switch off or modify one parameter and the final result will be completely different from reality.
Perhaps it is a little more difficult to accept the extent of such manipulation if someone has not lived under such an authoritarian regime.