Qutub Minar Complex Iron Pillar



Text of above Inscription:  “In the courtyard of the Quwwat-Ul-Islam mosque this famous iron pillar is situated, which bears a Sanskrit inscription in Gupta Period Brahmi script, palaeographically assignable to the Fourth Century, a date which is also confirmed by the peculiar style of its Amalaka-capital.

The inscription records that the pillar was set up as a standard (dhwaja) of god Vishnu on the hill known as Vishnupada, in the memory of mighty king. Named Chandra, who is now regarded as identical with Chandraguptai (375-413) of the imperial Gupta dynasty. A deep hole on the top of the pillar indicates that an additional member, perhaps an image of Garuda, was fitted into it to answer to its description as a standard of Vishnu.

The pillar has been brought here evidently from somewhere else, as no other relics of the fourth century are found at the site. There is a strong bardic tradition that it was brought here wherefrom, nobody knowns by Anangpal, the Tomar King who is credited with the founding of Delhi.

The base of pillar is knobby, with small pieces of iron tying it to its foundations, and a lead sheet covers the portion concealed below the present floor-level. The total length of this slightly tapering shaft is 7.20 m, of which 93cm is buried below the ground. the metal of the pillar has been found to be almost pure malleable iron. Its portion below the ground shows some signs of rusting, but at a very slow rate. The manufacture of such a massive iron pillar, which has not deteriorated much during sixteen hundred years of its existence, is a standing testimony to the metallurgical skill of ancient Indians.”



Weighing 6.3 tons  the 23.08 feet tall  black Iron  Pillar  with a diameter  of  17 inches in the base and 12 inches  is at the crest  in the courtyard of Quwwat-ul-Islam Mosque  complex, Delhi.

What is special about this tall vertically tapering iron pillar? 

It was forged in the 4th century with neither special protective paint over it nor any cover on it, but  has not rusted  in the last  1700 plus years. The crux of the question is how come it has withstood continuously the vagaries of weather for such a long period with no semblance of rusting so far?

The scientists are at their wit's end and at a loss to come up with a possible explanation regarding its chemical combination that resists rusting and corrosion.

The pillar with roughly 3 feet and 8 inches at the base of the column is below the ground. To give extra stability to the heavy iron pillar, the base is set on a grid of a series of iron bars soldered into the upper layer of the stoned pavement. For centuries studied in depth by the experts in metals, this iron pillar is "a testament to the skill of ancient Indian blacksmiths" of by-gone era because of its high resistance to corrosion.  An even layer of crystalline iron hydrogen phosphate forming on the high phosphorus content, serves to protect it from the effects of the local Delhi climate - extremely hot in the summer and very cold in the winter.

Such extreme climatic conditions do impact the stuff made of iron and causes rusting. That it does not promote rusting over several centuries  is a matter of great surprise and has been an unsolved riddle since 1900s.

The Iron Pillar, in the midst of Delhi’s most famous monuments, the Qutb Minar, dates back to AD 402 and since the early part of the 20th century has got the attention of the metallurgists for its rust-proof properties.

 There is a sort of some decorative feature at the top of the pillar, where a statue of Lord Garuda, or the ‘Sun Bird’, might have been set. According to historians this kind of feature was common to many such pillars of the time. The composition of the iron pillar is a subject of discussion and debate among the scientists. Some postulate the reason for the continuous resistance to corrosion is due to the fact   that the Iron Pillar has a high content of phosphorus and total absence of Sulphur or magnesium.

This is the reason why the iron pillar has not rusted even after 1700 years. Yet another positive aspect is this pillar was made to resist  humidity to a greater  extend -  about 70 percent, which is appropriate as the climate in Delhi, despite experiencing four seasons in a year. 

The pillar which is made of – 98 percent wrought iron  is listed under the Out-of-Place Artefacts (OOPArts) – a term applied to prehistoric objects from around the world that show technological advancement beyond the time when they were built.  In 2003, experts at the Indian Institute of Technology came up with an explanation to address the mystery of the pillar’s resistance to rust. They attributed the pillar’s resistance to rust to a thin layer of misawite, a compound of iron, oxygen and hydrogen.

R. Balasubramaniam of the IIT, Kanpur explains how the pillar's resistance to corrosion is due to passive protective film at the iron-rust interface. The presence of second-phase particles (slag and un-reduced iron oxides) in the micro structure of  iron,  high amounts of phosphorus in the metal, and the alternating  wetting and drying  cycles of  atmospheric conditions are the three main factors in the  formation of that protective passive film over the pillar.

 The pillar was installed in its current location by Vigraha Rāja, the ruling Tomar king. The pillar is thought to have originally been erected in what is now Udayagiri by one of the Gupta rulers. The suggested age of 402 CE is  still a matter of serious discussion. This rust free iron pillar at Mehrauli near Qtub complex continues to baffle the scientific community and the common man.

It was only in the second half of the 19th century the iron pillar drew the attention of the some inquisitive people. One  British soldier  Captain Archer talked about an inscription of unknown antiquity on the pillar, which nobody could read. Later James Prinsep, a British archaeologist studied the inscription in 1838 and translated it into English in the journal of the Asiatic Society of Bengal. According to the inscription a ruler named Chandra,  had conquered the Vangas and Vahlikas. Historians believe reference is made Samudragupta, the real founder of the Gupta Empire in (375–414 AD).

According to the accepted theory, the Iron Pillar of King Chandragupta II was originally installed in front of a Vishnu Temple complex at the Udaigiri Hills, near Vidisha, Madhya Pradesh. It was during the period of the Delhi Sultanate in 13th Century that the Turkish muslim invaders sacked Vidisha and brought this Pillar to Delhi as a war trophy. It was then placed at its current location inside the Qutub Complex in Mehrauli, Delhi, just next to the Quwwat ul Islam mosque.


The inscription in iron pillar is undated, and contains a eulogy of a king named Chandra. J. F. Fleet’s 1888 translation of the inscription is as follows:

(Verse 1) He, on whose arm fame was inscribed by the sword, when, in battle in the Vanga countries (Bengal), he kneaded (and turned) back with (his) breast the enemies who, uniting together, came against (him); – he, by whom, having crossed in warfare the seven mouths of the (river) Sindhu, the Vahlikas were conquered; – he, by the breezes of whose prowess the southern ocean is even still perfumed;

(Verse 2) He, the remnant of the great zeal of whose energy, which utterly destroyed (his) enemies, like (the remnant of the great glowing heat) of a burned-out fire in a great forest, even now leaves not the earth; though he, the king, as if wearied, has quit this earth, and has gone to the other world, moving in (bodily) from to the land (of paradise) won by (the merit of his) actions, (but) remaining on (this) earth by (the memory of his) fame;

(Verse 3) By him, the king, attained sole supreme sovereignty in the world, acquired by his own arm and (enjoyed) for a very long time; (and) who, having the name of Chandra, carried a beauty of countenance like (the beauty of) the full-moon,-having in faith fixed his mind upon (the god) Vishnu, this lofty standard of the divine Vishnu was set up on the hill (called) Vishnupada.

Let us be proud of our Heritage.

 

 


 

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