Paris, 1974. Radha, the younger sister who arrived in Jaipur in The Henna Artist and posed such a threat to the life Lakshmi made for herself catering to the wealthy palace women, is now 32, married and living in Paris.   After the pain of giving up her beloved Niki, the infant boy born out of wedlock when she was just 14, Radha has gone on to attend a private boarding school in Shimla studying math and chemistry. There, shortly before her graduation, she meets and falls in love with a young French architect named Pierre, who is doing research. Against her older sister Lakshmi s advice, Radha follows Pierre back to Paris where they marry and now have two daughters.    As a favor, Radha agrees to help out a friend s elderly grandfather in his perfumery. It is in this small Paris shop that her natural gift&nb