Question

what is the origin of Red Fort

Answer 1

the Red Fort is named for its massive enclosing walls of redsandstone and is adjacent to the older Salimgarh Fort, built by Islam Shah Suri in 1546.

Answer 2

Unlike other Mughal forts, tge red forts boundary walls are asymmetrical to contain the older salimgarh Fort. the fortress palace was a focal point of the medieval city of shahianabad, which is present day old delhi.
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