Grind the curry leaves and coriander leaves in a mixer. Heat oil, saute the above ground paste and keep it aside - Paste 1
Heat 2 tsp oil in a pankadai, roast cumin seeds, fennel seeds and whole pepper. Fry until fresh aroma arises. Make sure not to burn it. Transfer it to a mixer and powder it. Keep it aside. - Powder 1(Spice powder)
In the same pankadai, roast red chillies. Cool it completely and then transfer it to a mixer. Add salt and powder it. Keep it aside. - Powder 2(Red chilli powder)
Heat oil in a kadai, Splutter mustard seeds, add soaked tamarind water(extract the tamarind water and discard the pulp) and bring it to a boil. Add asafoetida powder,powder 2 ( red chilly powder), turmeric powder and jaggery, Bring the flame to low and add Paste 1 (Curry leaves and coriander leaves paste) and powder 1 (spice powder).