In a pan, cook chicken with soy sauce, vinegar, red chili sauce and salt until chicken done. Soak bread slices in water and squeeze water. Transfer cooked chicken, bread slices, black pepper powder and green chilies to food processor and chop. Take out chopped chicken in bowl and mix 1 egg in it.
Make a flat patty of chicken mixture, put cheese in center and roll out like a ball. In other egg, add corn flour and plain flour; make a smooth batter (add water if needed). Now dip balls in flour batter and coat in bread crumbs. Deep fry on medium slow flame until get a very light outer layer.
Let them cool and freeze. When you want to fry them, heat oil and deep fry on medium heat until golden all the way. Serve hot with chili garlic sauce.