Soak tamarind in warm water for 5-10 minutes, squeeze out the juice and keep aside .
Heat ghee in a pressure cooker .
Add mustard seeds , let splutter .
Add fenugreek seeds , asafoetida and green chillies .
Add spinach , washed daal and turmeric powder . Sauté till the spinach wilts .
Add 3 cups water and cook for 10 minutes on slow flame after the cooker reaches full pressure .
Open the cooker after the pressure is released , churn the spinach with a blender .
Add tamarind juice and salt .
Boil for 5 minutes and then add sambar powder , jaggery and curry leaves.
Add coconut and stir .
Remove from heat and serve .