Heat 1 tsp oil in pan add cubes cut brinjal cover lid and cook till become soft. Now Take another pan heat oil, add chana dal, udad dal, rai , cumin , fenugreek when seeds are crackle then add red chili, green chili , roast very well.
Now add ginger, curry leaves, turmeric powder, tamarind garlic roast well. Let it cool down Roasted ingredients. Take mixing jar, add roasted ingredients add little water make smooth paste.
Heat 1 tbsp oil in a small non-stick pan and add the mustard seeds. When the seeds crackle, add the curry leaves and saute on a medium flame for a few seconds. Pour the tempering over the brinjal chutney mixture and mix well. Serve with rice.