Heat another pan with oil over medium heat. Season with mustard seeds, Urad dal and dry red chillies.
When mustards seeds begin to splutter, add curry leaves and asafoetida.
Now, add the ground paste and sauté for a minute.
Add the tamarind extract, salt and jaggery. Add water for desired consistency.
Boil for 6-8 minutes over low heat with occasional stirring.
When oil leaves around the pan, turn off the heat.
Serve with plain rice, little gingelly oil or ghee .