Potato, chanadal, salt, red chilli, black pepper,Bari illaichi, whole coriander, zeera put in a pan and cook till potatoes and chanadal will b tender

Then mash it nicely and leave it to cool down when it will cool then mixture will b thick and hard

Now add green chilli, coriander and onion

Now make Pattie as per your desire and you can fry with egg coating or bread crumbs or without coating

Shallow frying is give good texture