Soak all the dhals in water for about 2 to 3 hours
Soak wheat rawa in enough water (just to cover the rawa) for one hour
Wash the soaked dhals and drain the water,Add red chillies, asafetida and salt
Grind to a coarse paste,Add the soaked wheat rawa to the dhal paste
Chop the onion and curry leaves finely,Add to the batter
Add little water if required to make the batter little thicker than dosa batter
Heat Dosa Tawa,Grease it
Pour a big ladle of batter in the middle of the tawa and spread evenly
Pour oil around the corners
Cook on medium flame
Flip over and cook other side also till it become nice brown
Serve with any desired chutney
