Into a large wok/pan, add a few tsp of oil that was used to fry the cauliflower.
Add the ginger-garlic paste and saute for a few seconds.
Add the celery and whites of the spring onion and saute till it is cooked.
Add the large squares of onion and bellpepper and saute till the they cooked, yet retain the crunch.
Add a little salt, though remember that the soy and chili sauces will add salt.
Add the soy sauce, chili sauce, ketchup, vinegar and Kashmiri red chili powder. Mix well and let it all heat up.
Add a few tablespoons of water, mix well and let it start boiling well.
Reduce the heat, add a pinch of sugar and taste the sauce and make any adjustments needed.
Add the fried florets, mix well and let it all warm up in the sauce for a few minutes.
Sprinkle the green of the spring onion and switch off.
Serve hot.