1. Mix the curds, flour, turmeric, spices, salt and sugar together.
2. Place it on a low flame and simmer until it starts boiling.
3. Temper all the ingredients given in some oil and then drop them in the curd mixture.
4. Meanwhile mix all the ingredients for making the dumpling in a bowl.
5. Add enough water to make it into a very thick batter.
6. Drop spoonfuls of this batter into hot oil.
7. Make the flame med-high and not too hot otherwise the outside will cook faster than the inside.
8. Remove them once they are brown.
9. Drop them in a bowl of water. This step is entirely optional. It helps to absorb the buttermilk mixture well. You can skip this step and add them to the kadhi directly.
10. Remove them after 10 seconds, squeeze out the water and then drop them in the curd mixture just 5-10 min before serving.
11. Serve hot with plain rice or phulka

Courtesy: http://chefinyou.com/