As I have not opted for the food, normally while booking ticket there is an option for Veg / Non-veg / No food. Due to ongoing Ramdan month I have carried home cooked food. Apart the food you get in 2 AC is totally different what you get in 1AC also there is one more good thing about 1AC for food specially, as you can order as many times in 1AC compare to 2AC which is restricted to limited time.