Soak the Urad dal for about 4 hours.
Drain the water from urad dal and blend it to a smooth consistency using very little water until the batter is very thick.
Pour the batter in a big bowl and add salt, ginger, cilantro, curry leaves, green chilies, and mix thoroughly.
Place a pan with oil ( about 2 - 3 cups) over medium heat for deep frying.
When the oil is hot, pour about a tablespoon of the batter in the oil. You can add about 8 to 10 tablespoon of the batter in one batch. For an aesthetic appeal, make sure the batter is spherical when you drop it in the hot oil.
Remove from the oil when the bonda turns golden brown.
Urad dal bonda is ready! Serve hot with coconut chutney.