The Supreme Court on Friday (February 14) heard the petition filed by the Tamil Nadu Pollution Control Board (TNPCB) against the Madras High Court order overturning the show-cause notice issued to Sadhguru's Isha Foundation for conducting construction work between 2006-2014 at the Vellangiri hills situated in Coimbatore, without applying for a crucial environmental clearance. At the start of hearing, a bench of Justices Surya Kant and N Kotiswar Singh raised a query regarding the delay of over two years in challenging the High Court order passed in December 2022.