Erm. Surely that refers to actual Indians, rather than Native Americans?
Unlikely for several reasons.
1) The commonly accepted reading of Pomponius Mela puts this event on Europe's North Atlantic coast. It is technically *possible* fior an indian ship tobe blown off course around Africa and drift out of sight of land until it reaches the North Sea or Scandinavia. Tthey made landfall among a nation close to Roman Gaul whose name was unforetunately garbled in transmission, but which is commonly read as Sueves - that would put them in Germanic territory. It is much more likely, however, that anyone blown off course and ending up here comes from the Americas.
2) Actual Indians would have been able to expülain where they were from in geographixc terms the romans - especially Pomponius Mela - could understand. it is possible that the writtentradition was simply not good enough when it reached him, but it is again more likely that their information siomply made no sense to the Romans.
3) Indian traders headed for the Red Sea, just like Parthian traders, would have spoken the lingua franca of thattrade network, which was Greek. At least one of these guys should have had enough of it to make it clear he wanted an interpreter.
4) You can cross the North Atlantic in kayaks and umiaks. It's been done, though not usually voluntarily.