Well it mainlu depends on your Point of View (POV)
This term denotes IT project of some kind being developed for some customer. Not in house and not in the same country but rather in one of the neighbouring countries or not much farther than that.
Usualy the time takne to fligh to the locatin where software is being developed is the measure. Any location that takes up to 3 hours flight to reach is considered as “near shore”.