Soak the rice in water for 2 hours.
Dram and pound it to a fine powder.
Roast urad dal and powder.
Mix both rice flour and dal powder, add sesame seeds, asafotida, soda bicarb and salt.
Add oil and roll into a soft douhg with water.
Press batches of this dough through a murukku mould and deep fry in an oil till crisp.
Drain and store in an airtight tin.