Take rice flour in a dry pan and roast it little, Remove to a bowl.
Take urad dal flour in the same pan and roast it little. Remove to the same bowl.
Add in salt, powdered gram dal,chilli powder, grated garlic,soaked chana dal, curry leaves, asafoetida and water to make a smooth dough.
Heat oil for deep frying. Once the oil is hot, the 1 tablespoon of oil and add it to the dough.
Divide it into 10 equal balls. Spread a plastic sheet, place a ball in the center, cover with plastic wrap and press the top with another flat bowl.
Prick the top with fork, drop in hot oil and fry for 30 sec or so, now reduce the heat and cook on low heat for a min or so till it gets crispy.
Drain it and cool it down completely.
Store it in air tight container and set aside.
This keeps well for more than 10 days.