An unidentified person called Uttar Pradesh Police, claiming that an explosive device has been planted inside the mausoleum's premises which would detonate soon, according to police.
The call was made on the emergency helpline number 112.
A team of Agra Police and the CISF, which protects the monument, searched the premises of the Taj Mahal.
The police believe that the bomb threat may have been fake.
The Taj Mahal is an immense white marble mausoleum constructed in Agra, India by Mughal emperor Shah Jahan in memory of his favourite wife between 1631 and 1648; UNESCO calls it “the greatest architectural achievement in the whole range of Indo-Islamic architecture”.