Wash the fish pieces and rub a little turmeric and salt on the pieces. Keep for 10 minutes.

Heat a little oil in a non-stick wok or frying pan. Wait till the oil is very hot, and fry the fish pieces a little (till they are light brown in colour). Keep the fish pieces aside.

Then heat oil again. Put in the ginger paste/grated ginger, green chillies, tomatoes, the onion pieces, and a little haldi. Stir fry for about 15 minutes in medium heat till the onions are cooked a little. Keep stirring as you saute.

When the consistency is thickish, add the fish pieces. Stir everything together (be careful about not breaking the fish pieces), add salt. Then add a little water (enough to cover the fish pieces) and the chopped cilantro.

Put the heat to high, and boil. If you are using a pan with a lid, use the lid to cover the pan. This will seal the flavors. After 20 minutes turn off the heat.

Serve hot with Basmati Rice.