In the 'river-front gardens' designed during the Mughal regime, the mausoleum was placed on a terrace and the garden to its: 

The correct answer is South.

In the 'river-front gardens' designed during the Mughal regime, the mausoleum was placed on a terrace and the garden to itsKey PointsArchitecture became more complex during the Mughal period. Many Mughal rulers like, Babur, Humayun, Jahangir, Akbar, and especially Shah Jahan.

Shah Jahan took a keen interest in literature, art, and architecture.

• He adapted the river-front garden for the layout of the Taj Mahal.
• It was the grandest architectural accomplishment during his reign.
• In this, the white marble mausoleum was placed on a terrace by the edge of the river. The garden was to its south.