Heat oil and fry the fish head marinated with salt and turmeric powder

Now keep it aside and temper nigella seeds and slitted green chilli

Add spinach and saute for a while add salt and turmeric powder and cover

Stir occasionally until it softens

Add fish head mix and cover till it starts getting tender

Now as moisture content dries up a bit remove the cover and add sugar

Fry on high heat and mix well

Serve it with rice