Hi ಸ್ಪರ್ಶ್** ,
These "Pazham Pori"s are surely tasty and a common snack in Kerala.
It is actually not made from Bananas but from Plantains (A cousin of the Banana Family ;) )
These are made from the Ripe Plantains while the raw Plantains are used to make the famous so called Kerala "Banana Chips" ( Again technically Plantain chips ;) )...
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Pazham Pori (Sweet Plantain Pakoda), Parippu Vada (Dal Vada), Uzhunnu Vada (Medu Vada) etc. would be available at most stations in Kerala.
Those who have not tried it yet should surely try it once!
Regards,
Sij