Roast the ingredients listed under masala powder. Allow to cool down and make a powder.
Cut the brinjal and soak in water until using it.
Slice the raw mango into 2 inch pieces.
Soak tamarind and extract the pulp.
Heat a nonstick pan with oil, temper with curry leaves, mustard seeds, urad dal, chana dal, cumin seeds, methi seeds, garlic and saute well.
Add the peeled and sliced shallots and saute till it browns.
Add the hing and salt.
Next, add the chopped tomatoes and saute well.
Now add the red chili powder, turmeric powder and cook for 5 mins.
Add the drained brinjal pieces and raw mango and fry for 5 to 7 mins on low flame.
Once the vegetables are roasted for 5 minutes, add the tamarind extract and 1 cup of water.
Bring to a boil and add more water to cook at low flame for at least 10 mins till you get the consistency.
Add the roasted powder and cook on high.
When the gravy reaches a thick consistency, switch off and serve hot with steamed rice.