Split the Cauliflower into florets. Keep them in boiled salt water for 5 minutes.
Make a paste out of Maida,Corn flour with water. Add Ginger paste,Garlic paste,Salt and chilli powder and mix well.
Add the Cauliflower florets in the paste and apply the paste to them thoroughly. Keep it aside for few minutes.
In a pan pour the oil and boil it.
On low flame fry the Cauliflower florets(which are applied with paste) in the oil till the golden brown color(Based on the crispiness and boiling you want). Do it for all florets.
Now, pour 2 tbsp of oil on a pan, add chopped onion, capsicum and green chillies fry it. Add the ginger garlic paste and deep fry it.
Add fried cauliflower florets, tomato ketchup,soya sauce and fry it.
Garnish with coriander and serve with tomato ketchup.