Mix the all purpose flour, sugar, baking powder, salt and water in a dish and blend it thoroughly to form a semi thick batter.
Add a pinch of turmeric powder to the batter to add color.
Peel the bananas and slice them length wise into half and then slice each horizontally into 3 or more to get thin slices.
Dip the slices in batter and evenly coat them.
In a deep bottom frying pan heat some oil. When the oil becomes hot, dip the batter coated banana pieces and fry them until they become golden brown. Flip them in between.
Remove from oil and drain the excess oil with paper napkins.