In a bowl, add the oats, rice flour and rava. Mix well, add salt, cooking soda and make a loose batter with water. Let it rest for 5 mins.

Heat a tawa and reduce to medium. Pour a ladle ful of batter and spread evenly. Sprinkle oil around.

Cook in slow flame so that the dosa gets cooked well.

Flip on other side and serve right away.