Add all ingredients except flours to the slightly thickly sliced onions and mix well by hand, pressing firmly.
Now add the maida, rice flour, and besan. Mix again into a semi-dry dough—moist enough to bind, but not watery.
Wet your hands slightly and shape into small balls. Drop them into hot oil. Let them fry on medium flame without touching for 2–3 minutes.
Then, gently flip and fry until the bubbling reduces and bondas turn golden brown and crisp.
Bondas may feel soft right off the stove; let them rest on a wire rack or perforated plate for 5 minutes. They’ll become crunchy and irresistibly delicious.