Take a pressure cooker , add fenugreek leaves, tur dal or lentils, slit green chilli and 2 cups of water.
Cook on medium flame until 5 whistles. Turn off the heat and set aside for it to cool.
Once cool, take the dal out and mash until well combined.
Take a deep bottom pan on low flame and add the dal mixture to it. Add little water if too thick.
Add tumeric, salt , chilli powder, and tamarind paste to the mixture. Mix well.
In another pan, add ghee, mustard seeds, cumin seeds, garlic, red chilli pieces, asafoetida and curry leaves and fry for a minute.
Pour the seasoning over the dal. Mix well and turn off the heat.
Serve hot with rice or roti.