Take all ingredients in a bowl.
Wash them 2-3 times and then soak them for 3-4 hours.
After 4 hours, drain the water and take them in a mixer along with salt.
Add little water and grind to a smooth batter.
Transfer to a bowl, close, and allow it to ferment for 6-8 hours.
Once it is fermented it will increase little in volume.
Mix water and adjust the consistency to dosa batter.
Heat Kadai and spread the dosa batter and drizzle oil.
Close and cook till it is crispy and golden. Fold and remove from the pan.
Crispy and healthy dosa is ready.
Enjoy it with a chutney/Sambar of your choice.