In practical terms, what is happening here, the scamming is a crime, it is fraud.
It would be very hard to justify the proceeds of criminal activity to be GDP, although we can make a case for that.
Take for instance, the narcotics trade. There is a supplier, perhaps that is an importer, then wholesale kingpins, then middle range dealers, then the street corner which is retail that gives people in the hood some jobs.
That is all economic activity, but I do not believe the US government would count that as part of GDP. No one is going to fill out a survey if the government sent them one, or see any tax records or banking information.
Now this is India we are discussing, so who knows? I still would think, no.
The Koreans should have just chose China.
Save themselves a few headaches.