Wash and soak both the rice for 1.5 hours.
Take well ripe tomatoes and chop roughly.
In a mixer jar, take the chopped tomatoes along with dry red chilies, coriander seeds, and fennel seeds.
Pulse until well mixed, there is no need to add water.
Add half of the drained rice to the jar and grind to a little coarse paste.
Transfer to a bowl, add the remaining rice, and grind again.
The consistency is more like Rava dosa, so the batter is very thin.
Add very finely chopped green chilies, curry leaves, coriander leaves to the batter.
Heat the tawa and make sure it is well greased. Pour a ladleful of batter in a circular style.
We can't pour and spread out as we do with regular dosa batter.
Drizzle oil over the dosa and cook on low flame until the dosa gets well cooked.
Serve with coconut chutney.