How to make plain dosa in India, in Chennai

From the archive record

Indian man makes plain dosa to serve customers at a restaurant in Chennai. Plain dosa recipe is made from fermented rice and urad dal batter. The only complication to make this is you have to soak them whole night and allow the batter to ferment in a humid place. If you living in very cold countries the batter might take a longer time than usual. You could place the batter in oven with the light on or at any warm place or in sunlight. How to make plain dosa: Soak rice, dal and dana methi for 6 hours. Then grind them to a fine thin batter by adding little water. Add salt to it and leave it covered for 12 hours for fermentation. Now heat a non stick tawa and spread 1 tbsp of the batter on the whole of the pan. Grease all the corners and then cook it on the other side also. Put little water o