Secret of Delhi Iron Pillar

The Iron Pillar in Delhi, India has withstood corrosion for over 1,600 years has continues to attract most of the archaeologists and scientists who like to make research on the secret behinds its strength and the way it is designed.

A group of archaeologist team from across various countries has recommended the Indian Government to allow research on the Iron pillar to find out its age, as well as for upkeep of its secretive part and the passive film that has sealed it through the ages.

"The Archaeological Survey of India has agreed to allow the use of well-established non-invasive techniques to ascertain as to when be the pillar built and its material aspects. But the efficacy of the techniques should be established by testing other ancient iron objects such as Iron Pillar at Dhar and Iron Beams at Konark," Director, Indira Gandhi Centre for Atomic Research, Dr Baldev Raj, who was a member of the panel that made the recommendations, said.

Earlier studies, beginning in 1961, have thrown some light on the composition and the microstructure of the "rustless wonder", but difference versions exist on the scientific dating of the pillar, Professor R Balasubramaniam, a scientist at IIT Kanpur who has conducted extensive research on the pillar, said.