firstly, in a pan take 1½ cup rice and dry roast on medium flame.
roast until the moisture goes away.
transfer to a plate and cool completely.
now grind to slightly coarse powder. you can alternatively use store brought rice flour.
take ½ cup urad dal, 2 tbsp toor dal, 2 tbsp chana dal and ¼ tsp methi.
dry roast on medium flame until the moisture goes away.
also add ½ cup poha and roast until the poha turns crisp.
cool completely and transfer to the mixi.
blend to fine powder.
now transfer the dal powder to the rice flour bowl.
also add 2 tbsp rava, 1 tsp salt and ½ tsp baking soda. in place of baking soda you can use eno as well.
mix well combining all the ingredients well.
finally, store instant dosa mix in an airtight container and use to prepare dosa, appe or uttapa.