1. Shell prawns, de-vein.
2. Wash well.
3. Grind to a fine paste, chillies,garlic, cumin and salt, using vinger.
4. Apply well on prawns. Set aside for half an hour.
5. Heat oil. Lightly fry chopped onions.
6. Add prawns fry for 5 minutes.
7. Cover and cook over a slow fire in this in its own grams till done.
8. Remove and serve hot.