Tomb of Mohammad Quli Khan, brother of Adham Khan (thus foster brother of Akbar), a general of Mughal Emperor, Akbar, later turned into a country house Metcalf House or Dilkusha by Sir Thomas Metcalf, near Qutb complex.
Tomb was built in 1610. Octagonal tomb was converted by Sir Thomas Metcalfe Resident at Delhi 1835-53 as a week end retreat by extending each octagonal side. Only northern side as can be seen here is remaining..
The semi-circular arches in front of the tomb's base are British (and would be part of Metcalf's house), and can be contrasted with the pointed archs of the original tomb.
