does the first class ticket on train number 52451 include food
No, the train 52451 Shivalik Deluxe Express does not offer onboard catering, and ticket fare does NOT include food charges. However, you can order food from Trainman app. You will get hot and fresh food at your berth. You just need to place an order prior and call on customer care half an hour before reaching station where food is to be delivered.