A COMMON GROUND Source: William Friar Four college students, the children of Indian immigrants, peered at the quiz slipped onto their table in a Berkeley Indian restaurant.They were taking a lunch break from an educational conference at UC-Berkeley that had drawn students of South Asian descent from throughout the Bay Area and Southern California. One of the organizers was trying find out how much the 220 participants knew about their heritage.The four women at the table were stumped by a multiple-choice question: Who is Published on May 23, 1999, Page C01, Contra Costa Times (Walnut Creek, CA)