Hey everyone,
I've got a flight on the 20th from LHR to NRT via DEL. It's a fairly long connection (~19 hours) and I've only just seen about all of this transit visa stuff. Feeling fairly screwed, as there's no way I'd be able to get the visa in time from the looks of it. What do you guys think might happen with these details.

Both flights are booked on the same ticket. Both flights are ran by Air India. Both would be arriving and departing from Terminal 3.

From what I've read it might come down to sitting around in a room for the whole connection time, unless I can get a boarding pass for the Delhi connection from LHR.

Any advice is massively helpful. Cheers!