Chop the green chillies and onion well and keep it aside
Take a bowl and add rava, rice flour and curd
Mix it well and keep aside for 2 hours
Now add green chillies, onions, cumin seeds, curry leaves, salt and mix it well
Check the batter and add little water if required to bring it to the consistency of vada mix
Heat vegetable oil in a pan
Make vadas of desired shape and size with batter and deep fry it in oil
To remove the excess oil, put vadas on a paper towel
Enjoy hot Rava Vada with tomato sauce