Wash and cut the brinjals into strips.
Heat oil in a pan over medium heat. I prefer to use a wide pan.
When the oil becomes hot, add mustard seeds and allow them to pop.
Add the urad dal. Stir fry till the dal begins to turn light brown.
Add the curry leaves. Stir fry for a few seconds.
Add turmeric powder and the brinjal strips.
Add salt. Mix well.
Cover the pan and allow the brinjal to cook over low heat. It will release water.
Stir occasionally to make sure that the brinjals are not sticking to the bottom of the pan.
After 10 minutes, the brinjals will have become a bit soft. Mash the brinjals as much as you can using a spatula.
Add the tamarind water. Mix well. Cover and cook.
Occasionally open the lid, mash and stir the brinjal mixture.
All of the brinjal added should be mashed.
When all the water is almost evaporated, add the spice mixture. Also add jaggery if using any.
Mix well. Cover the pan and allow the gotsu to cook for about 5 - 7 minutes.
Add chopped fresh coriander and mix well. Chidambaram Gotsu is ready.
Serve it with jeeraga rice which is cooked with cumin seeds and black peppercorn powder. Alternately can serve it with idli or dosa.