Shares in Vedanta Resources were up on the FTSE 100 in morning trading after the mining group reported record production of zinc and aluminium during the full year ended 31 March 2011.
In India the group saw mined metal production rise nine per cent to 840,000 tonnes during the full year period.
Refined zinc production during the year rose 23 per cent to 712,000 tonnes during the year in India, while silver production increased two per cent to 5.76 million ounces.
An export ban in the Indian state of Karnataka led to a slight drop in production of iron ore to 18.8 million tonnes, while sales of iron ore were down in the full year from 20.4 million tonnes to 18.1 million tonnes.
Copper cathode production in India and Australia dropped nine per cent to 304,000 tonnes, while in Zambia production increased 25 per cent to 217,000 tonnes.
Production of Aluminium increased 20 per cent to a record 641,000 tonnes during the year and sales of power rose 46 per cent to 4.8 million units.
By 08:40 shares in Vedanta Resources were up 1.32 per cent on the FTSE 100 to 2,463.00 pence per share.