- 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.