Make a dough of maida (this should be exactly like chapathi dough) dry grind all the above seperately into coarse powder. Now mix all these three and grind once.
Make a small puri from maida and if you have the device . Open it, put the puri on it and add 2 spoons of mixed powder. Close it and deep fry it in oil.
If you do not have the mould, you can just make a puri. Put 2 spoons of powder and close it to form semi circle and fold it thru the edges. Deep fry this in oil.