Once known to be the 'world's heaviest teen', Mihir Jain, a resident of Uttam Nagar, successfully underwent a gastric bypass surgery. Weighing a staggering 237 kg, Mihir said he feared death when he was admitted to hospital in Delhi. While a body mass index (BMI) of 32.5 is considered to be a sign of obesity, Mihir's BMI was recorded at 92 at the age of 14.