1. Marinade the fish pieces with malt vinegar , keep aside for 10 to 15 minutes.
2. Add all the ingredients for batter in a big bowl, mix well. Slide in the fish pieces in the batter, stir to coat the fish pieces well in the batter, let stand for another 5 to 7 minutes.
3. In the mean time, heat oil for deep frying; slide in the fish pieces in batches, not too much at a time; fry the fish pieces till it turns a bright golden brown color on both the sides.
4. Sprinkle chat masala on top and serve with onion salad and ketchup/green chutney as appetizer , can also serve as a side dish for your main course.

Recipe & image: Only Fish Recipes