Clean and wash fish pieces.drain water and marinate the fish pieces with salt and lemon juice.keep aside for 10 minutes.
In a bowl add chili powder ,turmeric powder,coriander powder,ginger and garlic paste.crushed shallot and salt.mix well and make a smooth paste add water if required.
Marinate fish with this paste and set aside for one hour.
Heat oil in a pan or tawa,shallow fry the fish pieces.turning over to cook both sides.