Take curd in a bowl, beat it and put tempering in it with mustard seeds, curry leaves, turmeric.

Cut brinjal in round slices and shallow fry them in a pan on both sides. Remove and keep aside.

Heat oil in pan and add chopped onions, saute for sometime. Then add salt, turmeric,chilli powder, little curd and cook untill oil starts to separate. Finally add the shallow fried brinjals in this gravy and cook for few seconds, add garam masala.

Mix this gravy in the tempered curd and serve.