Heat 2 tsp of oil in a pan, add 2 tsp of urad dal and cook it on medium-low flame for 2 minutes.
Add 250 grams of shallots and 5 garlic pods.
Saute till shallots become soft.
Add 10 red chilis and cook for a minute.
Add the soaked tamarind and turn off the flame and cool it down.
Add the needed salt and sauteed mixture in a mixer jar, grind it as a smooth paste. (add little water if needed).
In a small pan, heat 2 tsp of oil and add 1/2 tsp of mustard seeds, allow it to splutter and add few curry leaves.