Wash and soak urad dal for 3,4hours. Grind to fine paste.

Take rava tie potli in a cotton cloth and steam it for 30min.

Cool the steamed rava and mix both uraddal paste and rava by using hands for 2,3min. cover with lid and ferment for 6, 8hours or overnight.

Add salt to fermented batter and enough water to make idli batter consistency,pour in greased idli mould and steam for 10,12min.

Serve with chutney.