Sources from London have stated that Indian origin metal tycoon Sanjeev Gupta today said he will invest a whopping 120 million pounds in Britain's last aluminum smelter as part of a deal to rescue the site and safeguard hundreds of jobs. Gupta's Liberty House and his father's related business, Simec, will pay around 330 million pounds to acquire the plant at Lochaber, in the western Scottish Highlands, and two hydro-electric plants that power it.