Heat 1 sp oil in a pan add chopped onions and stir, when the onions are soft add amchur powder, chat masala, little salt & mix.
Add leftover raw banana curry, chopped coriander leaves and mix well, mash it well and turn off the flame & let it cool for some time.
Shape the mashed aratikaya mixture into lemon sized balls and set aside.
In a mixing bowl combine gram flour, rice flour, salt, cooking soda, add enough water to make it a slightly thick batter.
Heat oil in a khadai, take the ball and dip it well in the besan batter and drop it carefully in the hot oil and fry them until they become light brown in color, do the same process with the remaining balls.
Remove from the hot oil and place them on a paper towel to remove excess oil, now aratikaya bondalu are ready to serve, serve hot with tomato sauce.