Rava urad dal idli recipe - I am fond of all South Indian idlis. This rava urad dal idli is an alternative to rice urad dal idli. The interesting part of this idli is that the batter doesn't need any fermentation. Dal needs to be soaked for three hours and your idli batter will get ready within half an hour after grinding it. To make it more interesting, you can add green peas, carrot, chopped curry leaves, coriander leaves, green chillies and spluttered mustard seeds to it. But, we like it plain and I made it without adding any tempering and vegetables. I served this rava urad dal idli with sambar and coconut chutney.