Clean, wash and marinate fish pieces with ginger-garlic paste, pepper powder, turmeric powder, lime juice and salt for half an hour.
Shallow fry it in oil and drain it on a tissue paper to remove excess oil. Allow it to cool.
Break the fried fish into small pieces using hand and mince these pieces in a mixer (just rotate it for 2 or 3 seconds).
:- If we are using prawns, just fry it and mince it in a mixer, no need to break it into small pieces before mincing.
Keep the fried and minced fish aside.
Heat 2 tbsp of oil in a pan.
Add chopped onion, ginger, green chillies and curry leaves and saute well by adding salt.
Add mashed potato, pepper powder and garam masala and mix it well with the onion mixture.
Add minced fish and mix well.
Remove it from fire and allow it to cool.
Beat well the eggs by adding little salt.
Make balls out of the cutlet mix and shape it into oval shaped cutlets.
Dip the cutlets in beaten egg, coat it evenly with bread crumbs and fry it in oil.
:- Serve hot with tomato sauce.