Companies like Uttam Galva Steel Ltd, Vatika Jaipur SEZ Developers and Orient Craft Infrastructure had approached the government to surrender their projects in different parts of the country.
The decision regarding this was taken in a meeting of Board of Aprroval headed by Commerce Secretary S R Rao.
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The board has also cleared proposals for setting up of new SEZs.
"The BoA considered four new proposals for establishing SEZ (including one on multi-product, two sector specific SEZs for IT/ITES and one Engineering SEZ) with a total investment of Rs 6451.31 crore," an official statement said.
The board has also approved the conversion of the 624.786 hectare Mangalore SEZ from a sector specific zone to a multi product zone, it said.
"This change would enable the SEZ to invite units to be set up in a variety of sectors," it added.
The total exports from SEZs up to June 30 stood at Rs 1.13 lakh crore.
It also said several developers have sought extension of letters of approval, including those of ONGC unit at MIHAN (Rs 903.7 crore), Air India unit at MIHAN (Rs 265 crores) and Gopalpur SEZ in Orissa (Rs 235 crore).