firstly, soak urad dal and rice, methi in a separate bowl. add in enough water and soak for 5 hours.

furthermore, drain the water from rice and blend to smooth batter. add water if required to make a smooth paste.

also transfer to a large vessel. and keep aside

now blend urad dal to smooth fluffy batter.

now add a cup of paper avalakki to the blender. and grind to a smooth thick paste.

transfer the batter into the same bowl and mix well.

cover and ferment in a warm place for 12 hours.

the next day you can see the batter has raised well indicating its well fermented.

also mix the batter slightly.

furthermore, take required batter in a different bowl. and add salt to the batter and mix well.

heat a non-stick tava / griddle and pour a ladleful of the batter on it and spread it in a circular motion thin circle.

also smear a little oil over it.

furthermore, cover the dosa for a minute and cook till the bottom of dosa turns golden brown.

finally, fold over to make a semi-circle or a roll and serve immediately with coconut chutney and sambar.