which of these sites is also called the taj mahal of the deccan

The site that is also called the “Taj Mahal of the Deccan” (or “Taj of the Deccan”) is Bibi Ka Maqbara in Aurangabad (now Chhatrapati Sambhaji Nagar), Maharashtra.

It is a Mughal-era mausoleum built by Prince Azam Shah in memory of his mother, and it closely resembles the Taj Mahal in Agra, which is why it has earned this nickname.