Onetime Mughal capital
I believe the answer is:
agra
'onetime mughal capital' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for agra that I've seen before include "includes Taj Mahal" , "Indian city, capital of the Mogul empire until 1658" , "North Indian city, former capital of the Mogul empire" , "City in India" , "Indian masterpiece" .)