I'm from East and my husband is from North of India but one thing that we have in common is the love for Southindian Food. It is pretty light on stomach, very simple yet tasty. Usually when we travel by Rajdhani, we order continental food but when we travel by Shatabdi, South Indian Vada-Idli with Sambhar-Chautni...this is what we order all the time. India has such immense varieties all wrapped up into one, just taste it once.