Take tamarind in a bowl and cover it with 2 cups of water. Let it soak for 5 mins. Now mix with your hand. Strain it and set it aside.

Heat oil in a kadai. Add curry leaves and onions and fry till they turn transparent. It will take around 2 mins.

Add green chillies and chopped up brinjals and mix well. Add salt and tamarind water and mix well.

Bring it to a boil and cover and simmer for 15-20 mins.

Now using the back of a spoon mash the brinjal till it form a very smooth and gets mushy.

Now simmer this until all water evaporates and oil separates from this. Mix in between

Serve with rice or roti.