Experts have described the pillar as being even more wonderful than the great Minar. "It opens our eyes to an unsuspected state of affairs to find
the Hindus at this age capable of forging a bar of iron larger than any that has been forged in Europe up to a very late date," says one.
Historians fix the age of the pillar as over 1,600 years. From an inscription it seems to have been made by King Chandra Barman who ruled during the Gupta period.
Centuries of exposure to the elements have not rusted the pillar.