The Madras High Court on Tuesday rejected a plea from mining giant Vedanta to order reopening of its Sterlite copper unit at Tuticorin in Tamil Nadu. A division bench of Justices T S Sivagnanam and V Bhavani Subbaroyan upheld the orders of the Tamil Nadu Pollution Control Board directing the closure of the unit in May 2018. The court, in its judgment, that runs over 800 pages dismissed a batch of writ petitions from Vedanta and others challenging the closure.