Drain and rinse the soaked lentils well. Grind them with two tablespoons of water to form a really thick and smooth batter.
Add in the grated ginger and salt, and mix well.
Heat oil in a deep pan, and slowly add in about a tablespoon of the batter into the hot oil and deep fry till golden brown and crisp. Try not to overcrowd the pan and only fry a few at a time.
Drain the fried dumplings onto paper towels to soak any excess oil, and then add them into the yogurt sauce. Let them soak in the yogurt sauce for a few minutes.