"when was the last NORMAL scheduled passenger flight operated from Allahabad"???
Well as per published schedules it was 30 min ago and there is another one in about three hours!
Air Sahara operates Delhi - Lucknow- Allahabad - Calcutta and return the same way on Mondays Wednesdays Fridays using a CRJ aircraft. On the other four days of the week it routes via Gorakhpur instead of Allahabad. These flights have been operating for nearly an year now and has been one of Aie Sahara's first CRJ flights.
Yes there has been a long gap before Air Sahara started, but until the early 1990s IC
used to connect DEL with Allahabad using their erstwhile Hs 748s.
In Alexander Frater's recreation of the old imperial airways route "Beyond the Blue Horizon" he was supposed to have taken the DEL Allahabad flight as well, but then as I remeber from the book, his flight was rescheduled and he had to take the train!