Kerala Hotel Style Fish Curry / Meen Curry

Ingredients:

Fish - 500g ( after cleaning  )
For grinding:
Oil
Fenugreek seeds  - 2 pinch
Onion - 1 ( medium  )
Sliced garlic  - 1 1/2 tsp
Sliced ginger  - 1 1/2 tsp
Tomato - 1 ( medium  )
Turmeric powder  - 1/2 tsp
Grated coconut  - 1/2 cup
Water
For preparation:
Oil
Curry Leaves
Small onion - 6 ( big size )
Green chilli - 4 to 5
Chilli powder  - 1 1/2 tbsp
Coriander powder  - 1 tsp
Malabar Tamarind  ( Kudampuli  ) - 3 piece
Grinded paste
Water - 1 1/2 cup + 1/4 cup
Salt
Tomato  - 1 ( small  )
Coconut oil  - 1/2 tsp