Ingredients:
Fish - 125 gms, washed, cubed
Onion - 1, small, chopped
Ginger Garlic Paste - 1/2 tsp
Oil - 1 1/2 tblsp
Salt as per taste
Sugar - a small pinch
Vinegar as per taste

For the Masala:
Kashmiri Red Chillies - 6
Cumin Seeds - 1/4 tsp
Black Peppercorns - 6
Turmeric Powder - 1/4 tsp
Onion - 1/4, small, chopped (optional)
Ginger - 1/4 inch piece
Garlic - 6 cloves
Tamarind - 2 tsp
Sugar - 1/2 tsp
Salt - 1/2 tsp
Vinegar - 3 tblsp

Method:
1. Sprinkle salt on the fish and keep aside for a few minutes.
2. Heat oil in a pan over moderate flame.
3. Saute the onions till soft.
4. Add ginger garlic paste and saute for 30 seconds.
5. Grind the masala ingredients to make 2 tblsp of spice paste.
6. Add this to the pan and stir-fry for a minute or two.
7. Add little water if required.
8. Pour 3/4 cup of water and bring to a boil.
9. Reduce flame and cover the pan with a lid.
10. Simmer for 10 minutes.
11. Now add the marinated fish, salt and sugar.
12. Simmer for 5 more minutes till gravy is thick and fish is cooked.
13. Add vinegar if required and remove from heat.
14. Serve hot with rice or roti.