The Taj Mahal is an example of Ottoman architecture. This is obvious as the Taj Mahal's towers and round shaped roofs are similar to many mosques and temples built by the Ottomans.
The Taj Mahal is an example of Mughal architecture.
Established during the Mughal empire, some of the features found in Mughal gardens, cities, or forts is the influence of Islamic (especially Persian) architecture (the mosques with onion domes and thin minarets), ostentatious ornaments, and a sense of uniformity.
