We are flying LHR to DEL by BA arriving T3 and then flying DEL to Kathmandu by Indigo from T3. We have two separate tickets.
Can we stay airside at Delhi T3 or do we have to enter India and then go through check in/security again?
We have multiple entry Tourist Visas. If we have to enter India, how long will it normally take to make the transfer, as we have 3.5 hours between flights.