Wash and soak the rice with methi seeds in the buttermilk for about 3 hours.
When ready to grind, wash, and soften the poha. Take all the ingredients in a mixer jar and grind to a fine batter.
Transfer and ferment overnight.
When ready to make dosas, heat a tawa, grease with cooking oil, pour a ladleful of batter and swirl as a dosa. Cover with a lid after drizzling a few drops of cooking oil.
Cook on a medium flame for the dosa to get cooked well. Do not flip to the other side.
Serve with chutney of choice.