Food Option for this train is very limited and usually bad
Here is station you can buy something to eat
Day 2 -
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Breakfast - Narkher Junction
Lunch - Akola Junction
Dinner - Nizamabad
Day 3
Breakfast - Dharmavaram Junction
Veg Thali was Rs.70
Veg Biryani - Rs.70
Masala Dosa/Idli Vada - 40/30
other than that you can buy some local bytes at multiple stations
If traveling VIA AC Class ask attender for better food