Wash and soak the brown rice separatly, Urad dal, Chana Dal and Fenugreek separetly for 6 along.
Change water and drain the rice and dal to a bowl. First grind the Urad dal, chana dal, fenugreek in a wet grinder till the Urad dal is smooth and fluffy. Remove to a bowl.
Then add the drained brown rice and add enough water to grind to a smooth batter. When the rice is ground to a smooth batter, add the urad dal batter and let it run for couple of minutes to get mixed well.
Remove and add salt and let it ferment overnight before making the dosas.
Make dosas as you normally do with regular dosa batter. Serve hot with side dish.