1 ) Soak rice for 3 to 4 hours and toor dal for one hour separately.
2 ) Grind rice and dal with cumin, chili, curry leaves and onion to a rawa consistency. Transfer to a utensil.
4 ) Heat a non-stick tawa. Pour batter with a big ladle on the tawa and spread in a circular motion like for dosa. Drizzle sesame oil and cook on both sides till done. Transfer to a plate. Use up rest of the batter to make more adai.
Serve hot with chutney..