TTZ is an area of about 10,400 sq km which is spread over the districts of Agra, Firozabad, Mathura, Hathras and Etah in Uttar Pradesh and Bharatpur districts of Rajasthan.
The UP government told the court that they were considering a separate micro level plan only limited to due protection and preservation of the monument of Taj Mahal.
In an affidavit filed in the top court, the state government said the provisions for protection and preservation of Taj Mahal have been included in the master plan of Agra 2021.
"State further undertakes to follow environmental law and all orders of this court diligently and faithfully to ensure balance of ecosystem of the Taj Trapezium Zone," it said.
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The counsel appearing for the state mentioned the matter before a bench comprising Justices Madan B Lokur and Deepak Gupta and sought permission to file the affidavit.
The bench agreed to the submission and permitted the state to file its affidavit.
The apex court had earlier stayed its order directing demolition of a multi-level car parking being built near the Taj Mahal and had asked the authorities to maintain status quo at the site.
Environmentalist M C Mehta, who has filed a plea seeking protection of the Taj from the ill-effects of polluting gases and deforestation in and around the area, had earlier told the bench that TTZ was an "ecologically sensitive area" and the government should have come out with a comprehensive policy for preservation and protection of Taj.
The top court had earlier passed a slew of directions to protect the monument.