.Saute the savala in the oil,till it is slightly soft.The colour should not change. Now add the green chillies splitted lengthwise,followed by the ginger and garlic.Now add the maida, followed by 2cups of second extraction of coconut milk or pure water.Add tumeric powder,1 tsp lemon juice,tomatoes cut to small pieces and a pinch of salt.Bring to boil.Now add the marinatedd fish pieces slowly one by one,and cook in slow fire for 15 to 20 minutes or till it is done.