In a large bowl, soak uraddal, rice and methi seeds for atleast 3 hours.
transfer the soaked urad dal and rice into blender and blend to smooth and fluffy batter. remember only transfer half of the quantity at time other the mixie jar will overload and the motor will burn.
collect it into a large bowl and keep aside.
Now, add the remaining soaked lentils into the mixi jar and add poha.churn it and you will get a slightly coarse paste.
transfer to the bowl and mix well.make sure the batter has combined completely.
also clean the sides with your hand.
cover and ferment in a warm place for 8- 12 hours.
the next day you can see the batter has raised well indicating its well fermented.
additionally, mix the batter slightly.
scoop the required batter in a different bowl.
Add water to adjust the consistency.also,add salt to the batter and mix well.
heat griddle and pour a ladleful of the batter on it and spread it in a circular motion thin circle.
also smear a little oil/ghee over it.
then cook dosa till the bottom of dosa turns golden brown.
fold over to make a semi-circle, triangle or a roll and serve immediately with coconut chutney and sambar.