Wash the fishes properly.

Marrinate with salt and turmeric powder for 5 minutes.

Take a bowl, mix the curd with salt and turmeric powder.

Add mustard powder in it and keep aside.

Heat oil in the pan.

Add fenugreek & green chilles in it.

Add the mixture of the bowl in the oil.

Stir it in low flame.

Add the marinated hilsha in it.

Cover the pan with a lid.

Cook in low flame for 10 minutes.

Serve with steamed rice.