Marinate the fish with turmeric,salt and red chilli powder.

Keep it for 15 mins.

Now grind cumin seeds,fenugreek seeds,cloves & cinnamon stick to make a powder

Take ½ onion,2 green chillies & coconut to make a paste.

In tamarind water add some salt and grinded powder.

Then add ginger garlic paste into the tamarind water and coriander powder.

Also add onion garlic chilli coconut paste & mix thoroughly.

Add oil in a kadai & heat it.

Add onions,green chillies,salt and saute it.

Now add turmeric,red chilli & coriander powder.

Mix it well.

Add tomatoes & then place the marinated fish in the kadai carefully

Now do not stir the fish even once with or without a ladle.

Cover and cook it at low flame for 5 mins.

Now add tamarind water and boil it at high flame.

Once it starts boiling then turn off the gas at low flame until oil separates.

Garnish with fresh coriander leaves.