Jawab Masjid inside Taj Mahal , Agra, is a red stone mosque basically made for aesthetic appeal. Ashe mosque faces east, prayers are not offered here. It is identical to the mosque, which is on the left of the Taj. Jawab Masjid is known as a 'jawab' or an answer to the mosque and hence the name.

Jawab Masjid was built to maintain symmetry. To the left of the Taj is a mosque made up of red sandstone. It is a common practice to build a mosque next to a tomb, as it sanctifies the area and provides for a place of worship. This mosque is still used for Friday prayers.