Heat oil. Add the cleaned prawns, Salt and Turmeric, and fry till the water from the Prawns dries up. Keep the Prawns aside.
Heat the oil for the curry gravy and add all the masala ingredients, Zeera, Curry Leaves, and Green chillies. Fry well.
In the roasted masalas, add chopped onions and salt, and fry till onions are golden brown.
Now add Ginger-Garlic paste and fry well. Once it is fried, add Chopped Tomatoes and fry till tomatoes turn into a mish-mash.
At this point, add Chilli Powder, Turmeric, Dhaniya Powder, Zeera powder and some water. Fry well, taking care to see that the masala does not burn. Fry till il floats on top.
Add Gongura leaves and cook till the leaves get pulpy. Now add the prawns and some water. Cook till oil floats on top.
Sprinkle a little Garam Masala, Finely chopped Green Chillies, and Curry Leaves. Take off the heat. The dish is ready to be served.