A bench headed by Justice P Jyothimani issued the direction while dismissing a petition seeking prevention of alleged illegal and unauthorised construction being carried out by builders within the sanctuary's 10-km radius claiming it to be an ESZ.
"The states of UP, Delhi as well as Haryana who are likely to be affected by fixation of eco-sensitive zone (ESZ) shall send their proposals to the MoEF," the tribunal said.
The bench also said, "We direct the Secretary, MoEF to call for the concerned officers of all the state governments and have interaction and decide finally about the fixation of the eco-sensitive zone in respect of Okhla Bird Sanctuary."
The tribunal said any decision taken by the government in notifying the ESZ shall be subject to the final decision of the Supreme Court in the matter pending before it.
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The petition filed by Amit Kumar had claimed the 10-km area around the sanctuary to be ESZ, while, a committee under the chairmanship of District Magistrate of Gautambudh Nagar had recommended the ESZ to be a one km area. Later, UP government had reduced ESZ to 100 metres.
NGT had directed the state government to file a fresh proposal after noting that the "communication", claimed to be the UP's proposal, sent to the MoEF "does not give reasons" for the ministry to consider and decide on merit.
Opposing Kumar's plea, the builders had contended that since the sanctuary neither has a notified ESZ nor it was notified as a protected area, no clearance would be required from National Board for Wildlife (NBWL) for any project coming up within 10 km of it.