In the same pan add oil next add mustard seeds, fennel seeds, and kalongi.
Now add ginger garlic paste, sauté it till aroma comes.
Now add the grounded powder, turmeric powder and mix it nicely.
Next add tomato puree, dry red chillies and mix well.
Cover and cook till the mixture releases oil while stirring in between.
Next add coriander powder, red chilli powder and mix well.
Now add eggplants/ brinjal mix everything and cook eggplants in achari masala for 3-4 minutes.
Stir them couple of times so that masala do not get stick to the bottom.
After almost 5 minutes add water and mix everything.
Lower the flame cover and let them cook for 2 minutes.
After 2 minutes turn off the heat and serve.