NEW DELHI: A mentally challenged teenager who had strayed away from his family was on Monday reunited with his parents in Haryana's Panipat, all thanks to Aadhaar.The case relates to an Aadhaar enrolment drive that happened at a child welfare home, where officials had taken biometric details of all the boys. However, they found they were not able to register and accord a unique ID to the boy as he was already registered.The nine-year old was then transferred to the Salaam Baalak Trust child welfare home from Delhi Commission for Women-run NGO - Palna."Gaurav was transferred here because Palna takes care of children only up to the age of eight. During routine medical and psychoanalysis tests it was revealed that the child was suffering from ADSP (Alzheimer's Disease Sequencing Project). And as such he could remember nothing but the names of his parents and himself," said Sanjay Dubey , Coordinator Salaam Baalak Trust."During the biometric assertions, the credentials of the boy matched with that of his parents' in Panipat. Following that, his family was called to the national Capital leading to the reunion of the boy with his parents," he added.Meanwhile, Gaurav's father Vikas was overjoyed he found his son after two years."I remember, it was Sunday of 2015. Gaurav went missing while playing outside our house in Panipat. We searched for him everywhere and even reported to local police station," Vikas said, adding, "Despite several TV, newspaper ads and everything we were not able to find our son. But we never lost hope and now thanks to Aadhar we got our elder son back."Reporter: Prachi Yadav