Try to soak excess water from fillets with the help of tissue. Place on a plate.
Season it with a pinch of salt and pepper one by one.Keep aside for 15-20 minutes.
Take a bowl add flour, onion powder, garlic powder,paprika,black pepper, baking powder,1/2 tsp salt and make a paste out of it with the help of beer.
Heat oil in a flat pan for deep frying. Take Fish fillet one at a time coat in the batter well and fry on medium high flame. Fry till fish become crispy and golden brown then take out from oil and keep it on a tissue paper.