Feng Ai-ling moved to India in 2012 to teach Mandarin in the newly opened Taiwan Education Center at Amity University. During her initial year at the private tertiary institution in Noida, a satellite city of Delhi, she and three colleagues delivered lessons to some 300 students. In the time since, interest in learning the language has soared, with more than 700 people signing up for classes in 2017, Feng said.