Book Review: Bombay: Exploring the Jewish Heritage, by Dr. Shaul Sapir. Large format, hardcover, 290 pages; full-colour interior, lavishly illustrated with large four-panel foldout map. $50. Published by Bene Israel Heritage Museum and Genealogical Research Centre, India, 2013. There are four distinct historic Jewish communities in India — the Cochin or Malabar Jews, the Bene-Israel Jews,…