When Chitra Banerjee Divakaruni discovered that the American palate can be tickled byIndian condiments she hit pay-dirt. With books like Arranged Marriage and Mistress ofSpices, she struck a rich vein running through the American subconsciousthelonging for a lost homeland that characterises the immigrantexperienceand shes mining it for all its worth. In The UnknownErrors of Our Lives, she continues to delve into the mixed up psyche of the