Wash the rice and fenugreek seeds nicely and soak them in enough water for 4 to 5 hours.
2 cups Raw rice, ½ Fenugreek seeds
Similarly, wash and soak the urad dal and toor dal together in enough water for 4 to 5 hours.
½ cup Urad dal, 2 tablespoon Toor dal or chana dal
In a blender or a mixie jar, drain the water and add the dal, along with around ½ to ¾ cup of water. Grind it to a smooth batter. Add this to a large bowl.
Drain all the water from the rice and add it to a blender with an additional ½ to ¾ cup of water. Blend until you have a smooth batter.
Transfer this to the same bowl. Mix well.
Cover and let it ferment in a warm place for 8 hours or overnight.
After the batter is fermented, add salt and mix well. Check the consistency; if it is too thick, add water until it reaches a pourable consistency.
¾ to 1 teaspoon Salt
At this point, you can add sooji or semolina to the batter and mix it. This is optional but will give you a crispier dosa.
¼ cup Semolina or Sooji