Heat a Kadai with oil, temper with curry leaves, cumin seeds, methi. Saute for a minute, then add the peeled shallots, garlic and saute until the shallots turn color.
Add the hing, combine and add the tamarind extract along with salt and turmeric powder.
Add 1/2 cup water and bring to a boil.
When the gravy thickens a bit, add the ground curry leaf powder.
Mix well and add a cup of water, bring to a boil.
Simmer for 10 mins until the oil comes out on the sides.
Serve with steamed rice and ghee.
Cool it and you can refrigerate for a week.