City south of New Delhi (4)
I believe the answer is:
agra
'city south of new delhi' 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 "Taj Mahal's city" , "includes Taj Mahal" , "Subcontinental city" , "Taj Mahal location" , "Indian masterpiece" .)