De-shell and devein the prawns. Marinate them by applying red chili powder, turmeric powder and salt and keep it aside for 20 minutes.
Wash rice and keep aside for 20 minutes.
Add coriander leaves, green chilies, garlic and ginger in a mixer bowl and grind or blend into a thick smooth paste.
Heat a deep bottomed pan or kadai, add ghee and add spices (bay leaves, black pepper corns, star anise, cloves and cinnamon) till they turn aromatic.
Add onions and sauté onions till it turns pinkish.
Add minced ginger and garlic and sauté till garlic becomes aromatic.
Add chopped tomatoes and sauté till tomatoes become mushy.
Add capsicum and green peas and cook for 5 minutes by closing the pan.
Add marinated prawns and cook for 2 minutes.
Pour the green gravy from the mixer and mix well.
Cook for 5 minutes and add the stock cube.
Pour coconut milk and cook for 2-3 minutes.
Add washed rice and gently mix the rice.
Add enough water to cook the rice. I added 2 and ½ cups water for 1 and ½ cup rice. I want rice to be cooked aldente. If you want softer rice, you can add water in 1:2 ratio. i.e. for 1 cup rice add 2 cups water.
Add salt to taste and chopped mint leaves.
Cook for 20 minutes or until the rice is cooked.
After rice is cooked properly, fluff it using fork.
Garnish with chopped coriander leaves.