Clean and wash the eggplant, then slit it lengthwise about 2-3 times, adding the garlic and green chilies as you go.
Apply oil and roast it directly over the open flame until soft.
Remove the skin of smoked eggplant, chop the pulp and keep aside.
Add the paste ingredients to a small blender jar, blend it, and create a coarse paste.
In a mixing bowl, combine yogurt with smoked eggplant pulp, prepared green paste, cumin powder, salt, and finely chopped green onions. Mix it well.
In a small pan, heat the oil for the tempering. Add the mustard seeds, cumin seeds, and let them crackle. Add the hing. Pour the tempering over the dahi-eggplant mixture.
Serve over Bajara roti and garnish with chopped scallion, coriander leaves, and a pinch of red chili powder.
If you can't find a large eggplant, you can use a little eggplant and roast it in the same way.