Heat oil on a pan. Add the cabbage, tomatoes, green chilies, and tamarind paste.
Cook for 2-3 minutes and mix everything well.
Leave it aside to comedown to room temperature. Then grind it to a smooth paste. You can add a few drops of water if the mixture is too dry or coarse.
Next, in the same pan, heat oil. Add the cumin seeds, mustard seeds, dry red chilies, garlic, curry leaves, and chana dal. Saute. Let it cook for a minute.
Next, transfer the ground paste into the pan and mix well.
Serve as a delicious side dish to your meals.