A bench headed by NGT chairperson Swatanter Kumar directed the MoEF and GDA to "file an affidavit stating whether there are complete and comprehensive guidelines and if so, how are they being enforced."
The Tribunal also asked GDA to show if they require any environmental clearance from the MoEF or the State Environment Impact Assessment Authority (SEIAA) before carrying out any concretisation or tiling of the landscape.
It also asked the GDA if it was following the policy of leaving some area for water to seep in.
After looking at the pictures of landscape in Ghaziabad being concretised and tiled, the bench remarked, "If you (GDA) see what you are doing, the concretisation you are doing, it will take more time for water to seep in. You will imbalance the ground water.
Also Read
"Look at the pictures. You must leave some space for water to seep in."
At this, the chair said, "Are you sure you are doing what you are saying?"It also sought to know if the tiles being used are porous.
Vashishtha has alleged that the "extensive and mindless" tiling or concretisation of the land is not only preventing rain water from recharging the ground water but also "choking" trees to death and leading to rise in temperature.