Bengali Bhetki Macher Paturi Recipe (Barramundi Fish Wrapped in Banana Leaf)

Name: Bengali Bhetki Macher Paturi Recipe (Barramundi Fish Wrapped in Banana Leaf)
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: Asian, Indian
Ingredients: 4 Bhetki fish fillets cut to 4*2 inch pices; 2 tablespoons Mustard seeds (Rai/ Kadugu); 1 tablespoon Poppy seeds; 1/4 cup Fresh coconut grated, plus more to garnish; 7 Green Chillies slit; 1 teaspoon Turmeric powder (Haldi); Salt to taste; 1 Banana leaf cut into 10*8 rectangles; 2 teaspoons Mustard oil