Heat oil in a wok, fry prawns for half a minute, and set aside in a bowl.
Heat oil in a wok, add chopped tomatoes and sauté.
Add crushed red chilies, garam masala, red chili powder, black pepper, ground coriander seeds, ground cumin seeds, salt, coconut milk powder and stir well.
Add ginger garlic paste and mix well for a minute.
Add fried prawns to the gravy.
Stir in yogurt, cover the lid, and cook for 5 minutes till the oil separates from the gravy.
Add green chilies, garnish with fresh coriander and serve it with rice or chapati.
Enjoy!