The correct answer is option 1, stating that all three statements are correct.

Statement I says that Petronet LNG Ltd is setting up another LNG terminal at Mangalore. Petronet LNG Limited, one of the fastest growing companies in the Indian energy sector, has set up the country`s first LNG receiving and regasification terminal. If the company is indeed setting up an additional terminal in Mangalore, this statement is correct.

Statement II says that the head office of the Dredging Corporation of India is in Visakhapatnam. Dredging Corporation of India is a Miniratna company involved in dredging and land reclamation services, and indeed, its head office is in Visakhapatnam, Andhra Pradesh.

Statement III says that the Narwapahar Mine is operated by the Uranium Corporation of India Limited. The Uranium Corporation of India Limited is a public sector enterprise associated with Uranium mining and Uranium processing. The Narwapahar mine is a uranium mine in Jharkhand, indeed operating under the Uranium Corporation of India Limited. Therefore, this statement is also correct.