To begin with Mixed Millet And Lentils Adai, add all the millets into a bowl. Wash them and soak in enough water for minimum 4 hours. You can soak overnight too.
Grind the soaked millets and lentils along with dried red chillies and asafoetida, adding a little water at a time in a grinder. The consistency of the batter has to be slightly thick and not too watery.
Heat 1 teaspoon oil in a pan. Saute finely chopped onions, cumin seeds and chopped curry leaves until onions turn soft.
Add the sauted onions-cumin-curry leaves to the batter. Add finely chopped coriander leaves and salt. Mix everything well.