1. Soak the raisins in warm water for 20 minutes till they puff up.
2. Warm the tamarind paste on a low flame and mix all powdered spices.
3. Blend the raisins and ginger together in a food processor, and add the paste to the tamarind mix.
4. Sauté for another 5 minutes until the spices cook through.
5. Chill and serve as an accompaniment for Indian snacks.