Karmakar
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Karmakar is a Bengali Hindu caste spread throughout West Bengal, Assam, Tripura and Bangladesh. The Karmakars are traditionally blacksmiths by trade.
Kamar blacksmith, from a 1799 collection of etchings
Jahan Kosha Cannon
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The Jahan Kosha Cannon, also known as the Great Gun, is placed in the Topekhana, 400 meters to the south east of the Katra Mosque, in the town of Murshidabad, West Bengal, India. Topekhana was the Naw
Karmakar
…time, the Karmakars have produced engineering masterpieces. In 1637, Janardan Karmakar (Blacksmith) of Sylhet built the great gun of Murshidabad, the Jahan Kosha Cannon 'Destroyer of the World', which is 18 feet (5.5 m) in length and weighs around 7 tons. Another grand cannon named Dal Madal Kaman was built by Jagannath…
Photo of the Jahan Kosha Cannon, located in Murshidabad
An old photo of the cannon, when it was lifted four feet by the roots of a Peepal tree
Information placard about Jahan Kosha Cannon in the campus