Wash and pat dry the brinjal completely firstly.
Secondly, brush the brinjal with oil all over the surface. I cut off the green part (pavadai/ stalk side).
After that, insert a metal skewer through it.
Place over medium flame, directly over the burners. You can use mesh too.
Keep roasting all the sides, turning the brinjal every 1 minute.
Once all the sides are roasted and inside of the brinjal is cooked, remove from fire.
The skewer inserted will loosen as it gets cooked inside, so you will know inside of the brinjal is cooked.
Cool down and peel off the charred skin. If you have roasted correctly, it will come off easily.
If it is stuck, hard to peel off, it's not cooked yet.
Once all the skin has been peeled off, wash it so as to remove the small pieces of skin stuck to the brinjal.
Mash the brinjal roughly with your hands, keep aside.
In a kadai, heat oil. Roast red chilli, urad dal and asafoetida until urad dal is golden in colour.
Finally, place all the ingredients in a blender/ mixie along with tamarind, jaggery and salt.
If you want you can saute tamarind towards end along roasted items, to soften it.
Grind smoothly without adding any water.
You can choose to grind all ingredients except brinjal first and lastly add brinjal and give it a run for a different texture.