Place brinjal on live coals or grill and roast, turning frequently.
When skin turns black and the brinjal is soft inside, remove and peel.
Mash well and add to beaten curds.
Add salt and spices and mix.
Add mustard seeds and whole red chillies.
When the seeds crackle, pour over brinjal mixture, and mix well.
Brinjal Raita is ready to serve.