Sri Lankan chicken meatball curry

Name: Sri Lankan chicken meatball curry
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Cuisine: Indian
Ingredients: 500g of frozen chicken meatball; 1 tablespoon of ginger garlic paste; 1 tablespoon of cumin powder (make your own cumin powder); 2 tablespoons of coriander powder(to substitute cumin and coriander, use 2 tablespoons of good Sri Lankan curry powder, if you want to experiment and have a stronger taste 1-2 tablespoon of Jaffna curry powder); 2 teaspoon of red chilli powder (increase or reduce as per your need); Salt to season; Tempering ingredients; 5 tablespoons of oil; Sprig of curry leaves(substitute with 1 bay leaf); 3 cloves of garlic sliced fine; 1 large onion sliced; 2 medium-sized tomatoes chopped (substitute with 1 tbsp tomato paste or 1 tbsp tomato sauce); 2 green chillies split lengthwise (remove for a lesser spicier curry); 1 cup of coconut milk ( for thin gravy dilute the thick milk with water, for a thick gravy add coconut milk as directed)