What you need?
Boiled rice-1.5 cups
Black urad - .5 cups
Soak rice, ragi and urad overnight or 8 hrs
1. Grind blck urad for 30 mins or till fluffy
2. Grind ragi nicely, add rice to it at the end. Stop grinding as soon as the rice is like rava. Otherwise, idli will not be granular.
3. Add salt and mix well with hand.
4. Let it ferment overnight (keep in warm place).
Make idlis on idli plates as you do generally. Steam it for 15-20 mins.
I dont find it guilty to eat rice in this form since it is boiled and ragi adds more nutrition to the traditional idli.