Clean fish pieces.
Add turmeric powder salt and vinegar. Rub over fish let it marinate for 10 minuets.
Grind onian ginger garlic together
Add oil in wok . Add ginger garlic paste and fry .
Add dry spices. And salt Cook for 2 minuets. Add 1 1/2 cup water . Let it boil . Add fish . Dry mango powder. Cook for 10 minuets.
Serve with steamed rice