Put gram flour, salt,sweet soda, red chilli powder and ginger garlic paste in a bowl and mix well.
Add water to make a thick mixture.
Heat oil in a pot. Dip the chicken pieces cut into squares in gram flour mixture and fry them till they turn golden.
Take them out on paper towels and when the excess oil is absorbed, serve them hot with ginger garlic sauce.
For ginger garlic sauce, finely chopped ginger garlic.
Heat oil in a frying pan. Add ginger garlic when it is slightly cooked, add ketchup, red chilli flakes,white pepper and chinese salt and cook for 2 minutes with low flame.