I searched for "british visiting india regency era", "british traveling to india", "british occupation in india regency era", variations of that, and also this site: http://janeaustensworld.wordpress.com/social-customs-and-the-regency-world/ and this: http://www.reg-ency.com/re_entry.php as well as two books, "What Jane Austen Ate and Charles Dickens Knew" and "The Writer's Guide to Everyday Life in Regency and Victorian England".
Thanks!