Boil the potatoes, peel and grate them.Filter gram flour and keep it in any utensil. Put grated potatoes, salt, Heeng, turmeric powder, Garam masala in the gram flour and knead to make a smooth dough. Cover this dough for 15-20 minutes allowing it to ferment.
Attach a fine net to the Sev making machine. Apply some oil on your hand, break of a guava sized piece form the dough the roll it length wise. Put this rolled dough in the machine and close it.
Heat oil in a frying pan(kadhai),(the oil should not be excessively hot else Sev will burn instantly) push the machine's piston and put Sev in hot oil. Allow Sev to fry for some time then turn it over, fry Sev till it turns light brown. Take it out and place on a plate covered with paper napkin. Similarly fry all of the Aloo Bhujia Sev.
Once Sev is completely cooled fill them in an air-tight container and enjoy this snack for 1 month.
You can prepare Aloo Bhujia Sev Namkeen with more or less spices according to what you prefer. If you prepare it with less spices then even small children will be able to eat it, for more spices sprinkle this Sev with some Chat Masala.