Heat the oven on 350 F.
Add ginger garlic paste, green chili paste, salt and oil to the chicken. Cook it until chicken is tender and water dries.
Cut sides of breads and lightly soak breads in milk and then place in a dish.
Mix mayonnaise, chili garlic sauce, tomato ketchup, mustard, chili and soy sauce in bowl. Pour the sauce mixture on top of bread layer.
Add a layer of boneless chicken on sauce.
To make white sauce, heat oil in a vessel on low flame and add flour. Fry for 10 sec, now add salt, pepper, oregano and chicken cube. Turn off flame and add warm milk. Mix well to form a smooth sauce. Return to cooking and bring white sauce to boil. Turn off heat.
To hot white sauce add corn, jalapeno pepper and vegetables. Mix well and pour sauce on top of chicken in the dish.
Cover the white sauce with cheese and olives and mushrooms.
Bake in the oven for 10-15 minutes until cheese melted and dish is bubbling hot.