Marinate prawns with the paste and keep for minimum 30 minutes .
Slice onions chop garlic and dice tomatoes . Heat 2 tbsp of cooking oil in a frying pan and shallow fry marinated prawns by turning both sides on a low heat.
This time will take about 8 minutes ( cooking time may vary depends on the size of the prawns used ).
Heat remaining cooking oil in the same pan and put chopped garlic. Stir it for few seconds . Add sliced onions and salt. Sauté it in medium heat until golden .
Bring down the heat to low , add two teaspoon of Chilli powder and stir it for 1 minute.
To this add tomatoes and curry leaves stir occasionally in a medium heat until the tomatoes cooked well. When it’s done add fried prawns and combine well. Cook it in a low heat about 3 minutes by stirring occasionally .