A bench headed by NGT Chairperson Justice Swatanter Kumar directed the chief secretaries to be present in the chamber meeting which is scheduled on September 10.
The direction came while hearing a petition filed by NGO Doaba Paryavaran Samiti which has alleged that ground water in six districts -- Saharanpur, Muzaffarnagar, Shamli, Meerut, Bagpath and Ghaziabad -- was being polluted as a result of effluents being released underground by reverse boring by the industries.
It had directed Uttar Pradesh government to immediately provide clean drinking water in these six districts of the state through water tankers noting that even hand pump water was contaminated.
The plea, filed through advocate Gaurav Kumar Bansal, had alleged negligence on the part of the state government and said that villagers and children of schools in the six districts were forced to drink contaminated water.
C V Singh, president of the NGO, had said that there were several rivers like Hindon, Kali and Krishna that pass through the villages of western Uttar Pradesh.