In a large bowl, add little millets, udad dal and methi seeds. Add water and wash well. Drain the water. Add more water and keep the ingredients soaked for 6 to 7 hours.
Soak brown rice poha for 1 hour.
After 7 hours, drain the water and transfer soaked ingredients to a mixer jar.
Add soaked brown rice poha. Add little water and blend to a fine paste.
In a mixing bowl or vessel , add the batter . Add salt and mix well. Cover and keep aside for fermentation for 10 to 12 hours.
After 12 hours, the batter would be fermented.
This batter can be used to make dosas as well as idlis. For making idlis, the batter needs to be a bit thicker. For dosa, we need the batter of thinner consistency. So, you can remove as much batter as is required in a large bowl. Add some water and mix well.
Heat a dosa pan. Drizzle some drops of ghee/oil on the pan.
Spread the ghee/oil on the pan using a tissue paper.
The tawa should be hot before pouring the dosa batter on it.
Pour a ladle of dosa batter andspread it in a circular motion to form a thin dosa.
Drizzle a tsp of oil or ghee around the dosa and cook the dosa on low flame.
When the dosa has cooked well and turns crispy, remove the dosa off the heat.
Make dosas similarly with the remaining batter.
Serve dosa with chutney/sambar.