Pick only the leaves of methi. Wash and soak well for 20 minutes. Squeeze out the leaves and keep it aside
Wash and soak the dal for 10 minutes. Then cook it in enough water with 1/4 tsp of turmeric powder and few drops of oil in a pressure cooker up to 4 whistles, or till it becomes mushy.
Soak the tamarind in enough water. Alternatively, you can use 1 tbsp of tamarind paste too.
Grind coconut, red chilies and tamarind with just enough water to a smooth paste
Heat 1 tsp oil in a pan. Add the washed leaves and saute till it wilts. Add 1/4 tsp of turmeric and continue to cook on low flame.
Now add the ground paste, jaggery and asafoetida and mix well. Cook in low heat for another 2 minutes
Now add the cooked dal and salt, and cook for another 2 minutes. Switch off the fire
Heat 1 tsp of oil in a small pan. Add mustard seeds and 1 red chilly. When it begins to splutter, pour it on the prepared dal. Serve hot with rice and curry