Cover raisins with boiling water to plump and set aside.
Puree chutney in food processor until smooth. Place chicken in large bowl and top with pureed chutney. Drain raisins, wringing out excess water, and add to bowl. Add 4 tablespoons curry powder.
Toss together with the mayonnaise because the chutney and raisins add moisture. Add mayonnaise a little at a time and continue to toss until it’s as moist as you like—you will not need a lot. Taste, and add more curry powder and/or brown sugar to your liking. Fills 6-8 croissants.