Take little millet , horse gram and methi in a bowl . Wash nicely and soak for about 5-6 hours . Just 30 mins before grinding , wash and soak poha with rest of the ingredients.
In a mixer / grinder , grind all the soaked ingredients adding very less water . if you intend to use same batter to make both idli dosa grind medium smooth . Transfer to a container , add salt and mix well . Set aside overnight / 6-10 hrs for fermentation
Morning the batter would have fermented well. Mix well before pouring into greased idli moulds / making dosa .
Heat a tawa. Grease with oil.Pour a laddle full of batter..Spread it in circular direction .Drizzle few drops of oil or ghee around it.Cover and cook on medium flame for abt 1-2 mins.No need to flip over and cook . Once its done, the dosas come out easily from the tawa
Fold and serve
Crispy Horse gram millet dosa accompanied with chutney or sambar or chutney powder of your choice.