Fish recipe is very easy and common in West Bengal. From very early stages they start eating fish. Tiny fish contain more phosphorus then large fish. It has less cholesterol. I prefer to eat small fish. But it is difficult to cut and dressing.
After dressing wash thoroughly and marinate with turmeric powder, salt and lemon juice.
Take a frying pan add mustard oil then fry the marinated fish.
Now in the same if need add oil. Add mustard seeds, when spark add turmeric powder, coriander powder, cumin powder, ginger paste, chilli powder and salt. Sprinkle little water.
Stir continuously add a cup of water. Boil for a few minutes. Add fried fish, mustard paste and tamarind paste and sliced green chilli. Again boil. Serve with steam rice.