Kolkata Metro: The only Metro of IR. কলকাতা মেট্রো : তিলোত্তমার জীবন রেখা ।। - PPG

Good Food options here.
On PF 2, IRCTC Food restaurant is present.
One can have Biryani, Thali, Sandwich, South Indian Items like Dosa, Vada etc.
Veg Thali cost around Rs 100, Veg Biryani cost Rs 111.
If...
more...

you want to pack it, they will oblige it for small packing charges.
Even other Snacks outlet present on all Pfs. Nothing to Worry about.
On Pf 5, there is Shop (IRCTC only), there all evening snacks, tea coffee etc are available.
Jan Aahar Shop is on the First Floor of Pf 5.