hey there -
every time i fly between the US and Europe I request a vegetarian meal, this way i'm sure to avoid mystery meat. as long as you call 24 hours in advance of your flight, most major airlines will offer it to you, no problem. i've never travelled to india, so i cant say if it's the same, but check the website of your airline to see who you can call to request one.
alternatively, you could pack your own food, which is the best guarantee of a happy stomach. good luck!