This week, President Barack Obama used a newly-established “hotline” to send India his best as it marked Diwali, the country’s famed festival of lights. That same day, Indian Prime Minister Narendra Modi tweeted the following: “President Obama & I look forward to meeting in Turkey during the G20 Summit.” It all sounds rather chummy. But not to economists and the like, who warn the United States is missing out on THE moment to engage more deeply with New Delhi. Why? Because this year, India surpassed China, becoming the world’s fastest growing major economy.