Peel and devein the prawns. Wash thoroughly and dry.

In a bowl, marinate the prawns with chilli powder, coriander powder, turmeric powder and salt and keep 5-10 minutes.

:- For deep frying, maintain the temperature at medium high, else the outside of the prawns will get cooked faster, while the inside of the prawns will remain uncooked and raw.

Add the marinated prawns into the hot oil in batches. Fry till it turns golden brown in colour on both the sides. Remove the same in a plate.

Fry the pepper and cumin together in a pan.

Grind them together to a fine powder.

In the hot oil, splutter mustard seeds. Saute chopped onions and curry leaves till it turns soft and golden colour.

Add some chilly powder, coriander powder, turmeric powder, cumin - pepper powder & salt and saute for few minutes.

Add the fried prawns and mix well.