Cut eggs in half lengthwise. Remove yolks from eggs and place in a medium bowl; set whites aside. Mash yolks with a fork. Add mayonnaise, butter, curry powder, celery salt and onion salt; mix until smooth. Using a decorating bag fitted with a star tube, fill each egg white with egg yolk mixture, piping around edge to form a rim. Place a scant 1/2 teaspoon chutney in center of each.

Chill for 1 to 2 hours before serving.