Eggplant Kothsu

I made this kothsu for D the other day and she loved it. K also had some with rice and he said it was not bad. Considering he hates eggplant, that was high praise indeed! 

Eggplant Kothsu

1/4 eggplant, chopped (I used the long purple one)
1 tomato, chopped
2 green chillies, slit
1/3 tsp tamarind pulp
1 tsp sambar powder
curry leaves, 1 sprig
mustard seeds, 1/2 tsp
salt
hing
cilantro
oil

Heat oil and burst mustard seeds. Add eggplant and stir. When it is partially cooked, add tomatoes, curry leaves, green chillies and cilantro. After two minutes, add sambar powder and hing. Stir. Now add tamarind pulp, salt and 2 cups water and allow to boil well. Simmer till it reaches required consistency. This goes well with upma, ven pongal etc.