Soak the masoor dal and urad dal for 2-3 hours together. Soak the cracked whole wheat in warm water for 20 minutes. Drain the soaked dal and grind them. Keep it little coarse. Add the soaked cracked whole wheat and semolina to it.

Add the curd and salt. Mix and add water if required. The batter should be of dropping consistency. Be careful while adding water. Add gradually. Mix well and keep it aside for 15 minutes. In the meantime heat water in the steamer.

Take a little batter in a small bowl.(Around of 8 idlis). Now add 1/4 tsp of eno or fruit salt to it. Mix it well. The batter will start bubbling. Immediately pour it in the greased idli moulds and steam them in the steamer for about 12-15 minutes. Remove from the steamer and let it cool. Unmould them. Similary follow the procedure for making remaining idlis.