Soak the dals and the rice overnight with the red chillies. In the morning grind it (coarsely) with the green chillies, curry leaves and ginger.
Add a dash of asafetida and salt to taste. Adjust consistency with a little water if needed.
Pour a big ladle full in the center of a well-oiled tava, griddle or other non-stick pan and spread with the back of the ladle. Don’t spread it thin; it should be nice and thick.
Drizzle some oil around the edges and also a little in the center.
Let it brown about 2-3 minutes, flip it over and cook about a minute more. Fold and serve with your choice of pickle or chutney, or just plain old dal.