Make the Spice Paste: Fry the ingredients for Spice paste in 1 tsp of oil. Grind to a smooth paste along with coconut. Keep aside.
Cook toor dal in the pressure cooker and set aside.
For the Curry: Heat 2tbsp oil in a saute pan; add the tempering ingredients and once the seeds start to splutter, add the chopped eggplants and green chilies; cook until they start to get tender, about 8 - 10 minutes.
Then add tomato, tamarind pulp, jaggery, sambar powder and turmeric. Cook until the veggies are completely cooked through, another 5-7 minutes.
Next add the cooked dal and the spice paste. Simmer for couple minutes for the flavors to blend.
Garnish with chopped cilantro.