The aircraft used will be the B747-437B. If you let us know the exact date of your trip, I will find out which specific one it is and give you more details.
The food on AI is exceptional in all classes of service. There will be a choice of at least 4 entrees in economy class (Indian Veg, Indian Non-Veg, Western Veg, Western Non-Veg) and more in the premium classes.
The entertainment in the main cabin will consist of a 30 minute BBC news segment immediately after takeoff, followed by an hour long video magazine in English, a 2 hour Hindi movie, an hour long Hindi video magazine, a 2 hour English movie, a 2 hour multilingual entertainment program and finally a short video about Heathrow and London. The Skyshow will be featured at all times when nothing else is being screened.
Legroom on the B747-437B ranges from 60" in First Class to 47" in the reconfigured Business Class to 36" in the B zone to 32" in the C, D and E zones. The B zone seats are arranged in a 3-3-3 configuration and are wider than those in the other zones which are 3-4-3. If you can obtain an advance seat assignment in B zone, I suggest you do so.
"The A340-300 may boast a long range, but the A340 is underpowered" -- Robert Milton, CEO - Air Canada