Soak Rice and Pesarlu overnight. In the morning take out the Rice and Pesarlu(green gram whole) out of soaked water. Add 1 cup water along with Rice & Pesarlu to the grinder to make dosa paste.Add Salt to the Dosa PasteMix chopped Ginger, Onion, Chilly, Cumin Seeds for garnishing Dosa.Keep frying pan on the heater and apply 1/2 tea spoon of oil to it so that dosa doesnt stick to the panAdd 1.5 Table spoons of dosa paste and spread it across the frying pan until it is uniform and thin.Garnish the Dosa with 1 tea spoon of Ginger, Onion, Chilly and Cumin seeds.Cover the frying pan with a lid on medium heat for a minute and turn around the dosa. Repeat the same on both the sides until dosa turns golden brown color.Tastes good when served hot. Goes well with Coconut Chutney or Tomato Mint Chutney(Pickle).