Dr Giri said: “When the size of the ‘tail’ grew and a bone developed inside it, the ‘tail’ began to press on the boy’s back. It was cosmetically and psychologically disturbing for him. Hence the parents approached us.”

“Though the surgery is not very demanding but it is done by a neurosurgeon as the growth of ‘tail’ involves a part of the spinal cord.

“It arises from a compression at the tail end of the back and is medically referred as the neuro-development abnormality.

“This case is very rare and calls for a presentation in a medical journal as the ‘tail’ is apparently the longest recorded so far.”

Dr Giri added: “The boy would be under observation for a few days and his medication will go on for a couple of weeks so that it doesn’t hurt anymore.”