In a large bowl, combine grated cabbage, grated carrots, chopped bell peppers, chopped onions, all-purpose flour, ginger-garlic paste, soy sauce, cornstarch, salt, and black pepper.

Mix the ingredients well until they form a dough-like consistency.

Shape the mixture into small balls.

Heat oil in a pan over medium heat and fry the balls until they are golden brown. Remove and set aside.

In another pan, heat oil and add ginger-garlic paste. Sauté until fragrant.

Add water, soy sauce, chili sauce, vinegar, cornstarch, salt, and black pepper. Stir well and bring to a boil.

Once the sauce thickens, add the fried vegetable balls and toss to coat.

Garnish with chopped spring onions before serving.