India, May 13 -- 'Paxex'-short for passenger experience-is a popular social media hashtag in aviation and airport circles. Word on the block is that India's major airports now rank among the best in the world and are consistently winning accolades at global forums. A decade ago, passengers lamented the dreary, ill-equipped airports in the country. Today, they enjoy some of the best-designed experiences worldwide. Whether it's browsing through the art collection at Bengaluru's spanking new terminal, breezing through Mumbai's DigiYatra and Fast Track Immigration, or even enjoying live music in the arrivals lounge at North Goa's new terminal, airports across India are transforming into lifestyle zones. "Indian airports have truly come of ag...