The Supreme Court on Tuesday extended its stay on the Madras High Court judgment ordering closure of the copper smelter plant of Sterlite Industries (India) Ltd in Tuticorin, Tamil Nadu.

Last October, the apex court had stayed the High Court order. The apex court will now hear the matter in January. The court has permitted the plant to be operational till then.

However, the apex court, in its interim directions, asked the Tamil Nadu Pollution Control Board to give directions to the company within a fortnight for improvement of the plant's facilities on pollution control and grant time to the company to comply with those directions.

The apex court's directions came on a petition by Sterlite against the High Court order last September directing the company to shut its smelter plant for violating pollution control and environment regulations.

Sterlite claims that it had complied with the green norms and opposes charges on contamination.