When businessman Anuj-Prakash spotted teenagers shooting-videos at Tagore-Garden Metro-Station last-week, he was puzzled. The 40-year-old soon figured that that they were recording themselves on Chinese-mobile-app TikTok. "Out of curiosity I asked them whether they were on a college assignment. They laughed at me saying that they were actually making TikTok-videos. I was amazed to see that no-security-officer came to interrupt their activities," said Prakash.