Peel and devein the prawns. Wash in running water nicely and pat dry with clean kitchen towel.
Add in the prawns in a mixing bowl. To this add in the marination ingredients- crushed pepper, chilli powder, ginger garlic paste, salt to taste and lemon juice.
Mix well to combine and allow it to marinate for few minutes or 30 minutes.
In a mixing bowl add in the batter ingredients- gram flour, rice flour, turmeric powder, coriander powder, cumin powder, chilli powder, garam masala powder, salt as required and baking soda. Mix well to combine.
Add water little by little and make a semi-thick batter flowing consistency.
Meanwhile heat oil in a pan for deep frying.
Now dip the prawns onto the prepared batter and coat the prawns fully.
Drop in hot oil and fry the prawns in a medium flame until its golden and crisp from outside.
Remove and continue with the remaining prawns.
Serve hot with sauce or chutney of your choice along with fried chilli and onion rings.