In a preheated pan add one tablespoon oil and heat it. Add chopped onion, beans, carrot, and capsicum to it.

Fry them on a high flame for a while in order to keep them half cooked.

Now add salt and tomato ketchup. Mix it and cook for another minute.

Add red chili sauce and sugar to it. Mix it thoroughly and cook for another minute.

Side by side take some water in a cup and add two tablespoon corn flour in it.

Mix it well and add it to the above-cooked mixture.

Turn the flame to medium and keep stirring it until gravy gives out a thick texture.

Add vinegar and cabbage to it, cook it for another minute.

Now take crispy fried noodles on a plate and pour the above-cooked gravy on it.