Wash And clean the surmai fish well.
And steam it till cook properly.

Mash it in a mixing bowl, add boiled potato and bread crumbs.

Them add all spices mentioned above.
And mix and mash the mixture till combined well.

Now start making cutlet,
Beat egg in a bowl, dip ready cutlet into beaten egg mixture, then coat it with bread crumbs again.

Keep all cutlet ready with coating, keep it in fridge for 1/2 an hour.
Then shallow fry it in medium flame till crispy from all sides.