combine the rice and methi seeds in a deep bowl, soak it in enough water for 4 hours.
in a separate bowl soak urad dal in enough water for 4 hours.
drain the rice and fenugreek seeds and blend in a mixer to a smooth paste using approx. 1 cup of water.
and add thin avalakki (poha) and blend in a mixer to a smooth paste using approx. 1 cup of water.
transfer the mixture into a deep bowl and keep aside.
drain the urad dal and blend to smooth paste using required amount of water.
transfer the mixture into the same bowl.
cover and ferment in a warm place for 12 hours.
you can see the batter has raised slightly indicating its well fermented.
dosa batter is ready to prepare uttapam.