Flying to Port Blair in Andaman and Nicobar Islands or Leh in Ladakh? Make sure that you are carrying your RT-PCR test in case you are not fully vaccinated. While majority of states and union territories have relaxed Covid restrictions, a few still want unvaccinated travellers to mandatorily have either an RT-PCR test report within 48 to 96 hours before starting their journey or undergo a test on arrival at their respective airports.