In a mixing bowl combine all the ingredients under for the "Marinade" and rub on the chicken pieces and set aside for 30 minutes.
Heat oil in a frying pan and deep fry the chicken pieces till golden brown and cooked. Drain and set aside.
Heat 3 tbsp of chilli oil (or) ordinary oil. Add ginger, garlic, red chillies, sesame seeds & spring onion and stir fry on high flame for 1 minute.
Add the remaining ingredients except corn flour, bring to boil and add chicken. Cook covered on a low flame for 4 min and then add corn flour mixed with water and stir so that sauce becomes thick.
Garnish with spring onion.