"To arrest the exodus of investors from the SEZ scheme", the chamber "has advocated for single window clearance mechanism, ease of doing business and fiscal incentives both direct and indirect".
In a note submitted to the Commerce and Industry Minister, the chamber said there has been massive exodus from SEZs of late.
Until 2013, 580 SEZs were formally approved and out of this over 150 have been de-notified, it said.
If all the approved zones start exporting, it will help in boosting exports from SEZs, enhance development on industrial infrastructure and attract foreign investments, it added.
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Imposition of Minimum Alternate Tax (MAT) Dividend Distribution Tax (DDT) too has impacted investments in these zones, it said.
"Lack of clarity about implication of proposed Goods and Services Tax (GST) on SEZs and lack of coordination across departments at the Central and State government level" too is impacting these zones, it said.
The SEZs could also help in achieving the aims of Make in India initiative, it said.