Soak sabudana for three - four hours (do not keep more water it should be exactly the amount required to sok not more than that or else it would become very sticky)
Rinse after soaking so that all white powder is washed away.
Heat oil or ghee in pan, put rai, jeera a pinch of hing kari patta and green chillies.
Now add onions and potatoes (chopped)
In a different pan, now fry the ground nuts (peanuts) without any oil or ghee and remove the upper skin.
Crush the grund nut coarsely.( do not powder it)
Now after the potatoes and onions are done ( tender) add the spices and fry again
Now add sabudana and ground nut one by one.
Cover the lid for two minutes. then fry again, repeat the process without letting the sabudana stick to the pan.
fry till all's mixed thoroughly.
this should be served hot with mint chutney.
While making it for fast, do not add onions and add sendha namak instead on normal table salt.