1. After soaking the dal and rice, rinse and grind along with red chilli, salt and asafoetida with some water to a coarse paste.
2. The batter should be of dosa batter consistency - neither too thick nor too thin.
3. Add the rest of the ingredients and mix well.
4. Heat a flat griddle.
5. Spread some oil.
6. When the griddle is hot, pour a ladle full of batter and spread it in circular fashion.
7. Drizzle oil around the corners.
8. When one side turns golden brown, flip and cook the other side.

Courtesy: http://spicesetc.blogspot.com/