The Green Tribunal also imposed a penalty of Rs 50,000 on people dumping waste in the stretch between Haridwar and Unnao of River Ganga.
The meeting will discuss a wide range of issues including Himalayan resources, Himalayan economy, water conservation, tourism, development model, migration, disaster management and climate change, the release said.
A Himalayan declaration will be issued at the end of the meet through which the Niti Ayog will be apprised of the deliberations held at the two-day event.
The tribunal further said in its order that the government in Uttar Pradesh should be “duty-bound” to shift leather tanneries from Jajmau to Unnao or any other place it considers appropriate within six weeks.
The top green court clearly stated that the 100 metres distance from the edge of the river will not be used for developmental purposes.
The NGT also directed the governments in Uttar Pradesh and Uttarakhand to formulate guidelines for religious activities on the ghats of Ganga or its tributaries.
The NGT order is being seen as yet another move by the Green Tribunal to protect the Ganga river.
Earlier this month, the Supreme Court suspended a March verdict that gave the Ganga and Yamuna the same legal rights as human beings by declaring them living entities.
The Ganga is one of the world’s filthiest rivers, with tons of raw sewage and industrial waste dumped into it daily.