Chilli Chicken is a popular Indo-Chinese dish that combines the flavors of spicy and tangy chicken with a semi-gravy sauce. The chicken is marinated in a mixture of spices, then stir-fried with onions, bell peppers, and green chilies. The semi-gravy sauce is made with a blend of soy sauce, tomato ketchup, and other seasonings, giving it a rich and flavorful taste. This dish is perfect as an appetizer or as a main course served with steamed rice or noodles.