I am a British citizen. I recently applied for (and was granted) a multiple-entry 6-month Indian business visa. It looks likely now that I will not use it (the trips were cancelled for business reasons), but I wondered - will this have any repercussions on future travel to India or elsewhere? I can provide a reasonable explanation for why I never used it, of course - will that even be needed if I apply to visit India again (as a tourist or for business)?
To elaborate on jpatokal answer:
- Other countries do not care - at all. They often cannot even tell if you used the visa or not. Specially multiple-entry visa do not show on the visa page itself if they have been used or not. You would have to go through the whole passport and check for stamps that would fall into the timeline of the visa validity.
- India does not care, either. Trips get cancelled all the time, specially in business. It's a normal thing. Even if someone at the immigration asks you (they have the right of course to ask you anything), simply stating that you were assigned to a project that was then cancelled is a perfectly fine reason. As always in business: Blame your boss. I would be very surprised however if they ever ask you. Immigration generally only cares when you do come into their country, not when you stay at home.