1) Put the oil in a microwave-safe dish. Microwave at 100% power for 2 minutes. Drop in the seeds. And continue to microwave at the same level for one minute. Add the spices and ginger-garlic paste. Stir and cook for another 3 minutes (or 2 minutes at MW 70% + Conv 200 Degrees).
2) Pour in the tomato puree. Cover with a paper towel. Cook at 100% power for 8 minutes, stirring twice, until the oil starts to separate at the edges.
3) Fold in the fried brinjals and a few tablespoons of water to make a thick, clinging gravy. Cover and Microwave at 100% power for 3 minutes. Let it stand for 3-4 minutes before serving.