Adhi and Adhri twin brothers aged one successfully underwent a first-of-its kind neurosurgery at the All India Institute of Medical Sciences here. The children underwent the surgery March 27 a week after being admitted in the hospital. They were discharged April 5. The media came to know about the medical feat at a press conference here Wednesday. The kids suffered from Craniosynostosis a condition in which the bones and outer structure of the skulls grow faster than normal or into abnormal shapes. As a result the brain has to bear the pressure because of the inadequate space available to it.