Wash and soak masoor dal for 15 minutes.
Drain the water and transfer soaked dal to a pressure cooker.
Add chopped tomato, green chillies, turmeric powder, salt and 1 ½ cups of water.
Pressure cook the dal for 3 to 4 whistles.
Open the pressure cooker once the steam escapes completely. Keep cooked dal aside.
For the masala paste, heat a pan and add coriander seeds,cumin seeds, dry red chillies and black pepper.
Roast the spices on low heat for few seconds. Allow the roasted ingredients to cool down.
Transfer the roasted ingredients to a mixer jar. Add coconut, garlic and tamarind. Add little water and blend to a fine paste.
Wash the leafy greens and chop them.
Transfer the chopped greens to a pan. Add ½ cup water.
Close the pan and cook for 7 to 10 minutes on low heat.
Once the greens are cooked,add the masala paste and cooked dal.
Add salt and jaggery powder. Mix well. Add around half a cup of water or as required to adjust the consistency. Bring it to a boil .
For the tempering heat oil in a small pan.
Add mustard seeds, crushed garlic and asafoetida. Once they start spluttering, pour the tempering into the Saaru.
Serve hot with Ragi Mudde or rice or jowar rotis.