Whip the curd well by adding salt . Cut the brinjals into thick pieces of length around 2”. Fry the cut brinjals in a frying pan. Then put them into  the whipped curd . Heat two teaspoon of  refined oil in another frying pan. Add mustard, cumin seeds and curry leaves. When the seeds start cracking add green chilies. Transfer the contents of the pan to the curd containing brinjals. Stir lightly. Keep the dish aside for 10 minutes and then serve with hot rice.