Shorse bata diye Parshe/Mullet fish in mustard paste

Clean and wash fish.Discard water and smear little salt and turmeric.Heat 3 tbsp mustard oil fuming hot and fry fish golden brown.Sprinkle kalonji in remaining oil.Add the fish and 1 cup water.Add turmeric,red chilli powder,tomato puree and salt to taste and bring to boil 5 minutes.Meanwhile make a paste of soaked mustard seeds with curd and 2 green chillies.When almost done add the mustard paste and sprinkle 1 tbsp oil.Give 1 boil and garnish with chopped coriander and slit green chillies.