Take a grinder jar add mustard seeds, green chilies and little salt, grinder them with little water into a smooth paste. Mustard paste is ready,Keep aside.

First clean and wash the fish properly and place on a plate add little salt and turmeric powder and rub well the fish. Keep aside to marinate for 10-12 minutes. Heat mustard oil in a kadai, place the fish pieces carefully and fry on medium heat. When one side fry nicely golden brown then flip it carefully and fry till golden brown. Now take out in a plate, keep aside.

Same kadai add kalonji and green chilies and saute few seconds then add mustard paste, salt, turmeric powder, mix it well and cook on low flame.

Now add 1 cup hot water and cook for 4-5 minutes then add fried fish pieces and cook another 2-3 minutes, turn off the flame. Sorshe maach is ready.

Sorshe Ilish / fish bengali recipe is ready to serve.