Soak 1 glass of channa dhal & 1 glass of moong Dhal for 3 to 4 hours or overnight. Drain the water and grind into a rough paste along with sufficient salt. Avoid adding water. But, if you cant grind without it, add very little water. The paste should be ROUGH. Grease a dish. Add the thick batter into the dish and steam it in pressure cooker for 15 minutes. (Ensure not to put the whistle – should just steam like how you do for Idlis).