After years of being a virtual no-go area for foreign wine producers, India, one of the world's most restricted markets for the importation and sale of wines and spirits, is finally opening up to outsiders.As a result of new legislation being introduced next year governing the importation of bottled wines, the quality of wines produced for the Indian sub-continent is expected to improve drastically over the next decade. Leading the way is California's Wente Vineyards, which in the past two years...