BSNL's Chairman and Managing Director Anupam Srivastava told PTI that network installation is complete and the service will be free of cost for the first 30 minutes.
An official in Telecom Ministry said Ravi Shankar Prasad is scheduled to launch the facility at Taj on June 16.
As part of the Digital India programme, the government is working towards enabling all cities with a population of over one million and tourist centres with wi-fi hotspots.
In February, wi-fi facility was launched by BSNL at Dashashwamedh Ghat and Shitala Ghats of Varanasi.
The monuments include Taj Mahal, Fatehpur Sikri, Sarnath Konark Temple Rad Fort and Ellora, among others.