Bhubaneswar, Sep 17 - The Orissa government, which Thursday reviewed the progress of 14 greenfield projects underway in the state, said most of the companies setting up these projects have not completed land acquisition.

'Acquiring land is the biggest problem before these mega projects. Most of the companies that set up these projects have started acquiring land. We are trying to expedite the acquisition process,' Steel and Mines Minister Raghunath Mohanty said after the meeting.

Top government officials and representatives of the companies attended the meeting.

These 14 companies have a combined land requirement of 45,607 acres of which less than one-third -- 14,131.9 acres -- have been acquired.

The combined value of these proposals is Rs.2 trillion (nearly $40 billion) and the government claims that Rs.21,031.71 crore (nearly $520 million) have been invested so far.