1. Drain the toor dal well.
2. Saute the onions,ginger and chilly in little oil with salt.
3. Grind corainder leaves, onions,ginger with Toor dal with no water. It should be a coarse paste
4. Make balls out of them and steam in a cooker. Make sure not to oversteam since it can get v hard. Cool and keep aside.
5. Wash the spinach and blanch them in water for 2-3 min. Liquidise it in a blender.
6. Heat some olive oil in a pan and add the grinded paste to it. Cook for a while.
7. Add the spinach along with curd,salt and sugar. Simmer for 5-8 min.
8. Place the steamed balls in a plate and pour the gravy on top.
9. Serve it with rice/chapathi.

Courtesy: http://chefinyou.com/