The Supreme Court on Thursday directed the Uttar Pradesh government to file within four weeks a vision document for protection and preservation of the Taj Mahal.

The apex court also directed the state government to explain why there was a sudden flurry of activities in and around the Taj Mahal and the Taj Trapezium Zone (TTZ) and why leather industries and hotels were coming up there.

TTZ is an area of about 10,400 sq kms spread over the districts of Agra, Firozabad, Mathura, Hathras and Etah in Uttar Pradesh and Bharatpur in Rajasthan.