Clean and wash prawns thoroughly with water. Take all ingredients together along with washed prawns.

In a wok, heat oil. When the oil begins to heat, add chopped onions.

Saute on low medium heat until they turn golden brown. Add ginger garlic paste and saute for few minutes. Add rest of the spices like Turmeric powder, Red Chilli powder, Slit green chilli, Salt, Coriander powder and Salt. Mix well.

Add just a splash of water so that all the ingredients get well mixed. Cook until the oil begins to separate on low medium heat.

Add prawns into the cooked spices. Mix well and cook for 5 to 7 minutes by stiring in-between.

Add water as required to make curry and allow it to boil on medium high flame. When the oil begins to float on the surface, turn off the flame.

For tempering, heat 1 teaspoon of oil, add Mustard seeds and curry leaves into it. When mustard seeds begins to crackle, pour it over the prepared prawn curry.

Cover and cook for 2 minutes. Turn off the flame and it is ready to serve.