Soak, strain and collect thick tamarind juice and keep it aside.
Heat the frying pan with 1 tsp of oil.
Fry pepper, red chillies, tur dal, urad dal, coconut and curry leaves.
Grind this into a fine paste by adding small amount of water.
Heat the frying pan with 2 tablespoonful of oil and add mustard and when it stops crackling add a few curry leaves, asafoetida and extracted tamarind juice.
Add turmeric powder and the ground paste and mix well. Add Jaggery in it.
Cook till the raw smell goes off and add salt to taste.
Boil till oil separates and floats on top.
Serve with steamed rice and pappad; tastes best with Inji (Ginger) Thuvaiyal and Paruppu Thuvaiyal.