Mangalorean fish curry

Masala ingredients:
1tbsp coriander seeds
1/2 tsp jeera seeds
8 red bedege and Kashmiri mixed chillies
7 cloves garlic
10 pepper corns
1 medium onion
1/2 inch haldi piece
1/2 a coconut scraped
lime-sized tamarind

 1 kilo fish cleaned
1 onion
curry leaves

Method:
1.Heat oil and fry one onion. Throw in some curry leaves, put the masala in and fry a little while then add water and keep boling lastly put in the fish and slowly bring it to a boil, simmer a bit and remove.