Doi Ilish (HIlsa Fish in Yoghurt Gravy - Bengali Cuisine)

Marinate the fish with yoghurt, salt, turmeric powder, 1 tsp. mustard oil and chopped green chilies for 10 minutes. Heat 1 tbsp. mustard oil in a pan and temper with nigella seeds and slit green chilies. Saute for a few seconds.

Add the marinated fish and cook, covered on a low flame for 4-5 minutes. When done add the remaining mustard oil and coriander leaves.