In a mixing bowl add in the chicken and all the ingredients mentioned in the marination list. Mix well and keep them marinated while you make the other ingredients ready.
In a small bowl add all the ingredients mentioned in the sauce list, mix well and keep aside.
In a frying pan heat the oil. Once the is heated reduce the heat and add in the marinated chicken. Do not over crowd them.
Let it fry undisturbed on medium heat for about 2-3 minutes. Turn over the chicken and fry for 1-2 minutes or until golden brown in colour. It will take only 5 minutes approximately to fry the chicken.
Remove and keep aside. Continue the same with the remaining chicken.
In a pan heat 2-3 tablespoon of oil (use the same oil used for frying the chicken).
Add in the chopped ginger and garlic and fry for about 30 seconds.
Add in the onion, capsicums, green chillies, red chillies and season with salt if required. Stir well to combine and fry for a minute.
Add in the fried chicken and and toss well for few seconds.
Stir in the sauce mixture and toss well in high heat coating the chicken and the veggies well with the sauce for about 2 minutes and turn off the heat.
Note : At this stage you can add in 3-4 tablespoon of water if you like to make it slightly saucy or add water as required to make it semi-gravy (You will need to add 1-2 tablespoon cornflour more if you want to make it a semi-gravy way. Make a slurry and add).
Take off the heat and sprinkle the chopped spring onions green and give a quick mix.
Garnish with some more spring onion greens and serve. Enjoy!