Chicken Chilli Recipe - Restaurant Style - Spicy Chilli Chicken

Today I made Chicken Chilli Restaurant Style.
Ingredients: 500 g chicken boneless thigh or breast, cubed 4 tbsp corn flour 1 tbsp flour 1 egg 1/2 tsp salt 1/2 tsp black pepper powder 1 tsp ginger garlic paste 1/2 tsp lemon juice or vinegar CHILI CHICKEN SAUCE: 2 tbsp sesame oil 2 garlic cloves, chopped 3-4 green chilies, sliced 1 tsp vinegar 1 tbsp soy/soya sauce 1 tsp chili sauce/paste 2 tbsp tomato paste 6 tbsp ketchup 1/2 tsp salt 1/2 tsp black pepper powder some sesame seeds some green chilies for garnish