[1][2] Raja Kakil Dev captured the Amber region from the Mina tribes and began construction of Jaigarh fort around the middle of the eleventh century.

Over the centuries, the Fort was augmented by subsequent rulers, including Maha Raja Jai Singh II, who added palace apartments to the complex.

[1][4] Amer was known in the ancient and medieval period as Dhundhar (meaning attributed to a sacrificial mount in the western frontiers).

The molten metal would fill a reservoir chamber and pass into a cannon mold in the casting pit.

When the Mughal war of succession broke out in 1658 Dara Shikoh secured the cannon outpost of Jaigarh Fort until he was defeated and executed by his younger brother Aurangzeb.

Later however, the Mughal Emperor Muhammad Shah appointed Jai Singh II as the official Mughal quiladar of Jaigarh Fort according to a Firman, ultimately Jai Singh II is known to have molded the great Jaivana Cannon by utilizing the important foundry and devices inside Jaigarh Fort.

The architectural features are of Indo-Persian style with cyclopean walls built with dressed stone and plastered with lime mortar.

There were completely false rumors, that a treasure belonging to the Kachwaha rulers of Amer had been stacked in the fort precincts (including the water tanks), that led to a totally unsuccessful search.

A futile search was also launched, in 1977, of all the buildings in the fort, by the Income Tax department, using metal detectors.

[2][8][4] [10] There was also a Parliament Question on this issue where a question was posed whether a "Search for treasure carried out from 10 June 1976 till November 1976 by the Income Tax Authorities at Jaigarh Fort on the Jaipur Delhi Road was closed to ordinary traffic for one or two days so as to make way for military trucks carrying treasures to the residence of the then Prime Minister, Smt.

[12] The armoury chamber here has a wide display of swords, shields, guns, muskets and also a 50 kilograms (110 lb) cannonball.

[4] The museum is located to the left of the Awami Gate; it has exhibits of photographs of the Royalty of Jaipur, stamps and many artefacts, which include a circular pack of cards.

It is now home to the Jaivana – at the time of its manufacture in 1720, it was the world's largest cannon on wheels of the Early Modern Era.