JOIN USExports from special economic zones (SEZs) grew by about 31 per cent year-on-year to Rs 4.76 lakh crore during 2012-13.
Shipments from these zones stood at Rs 3.65 lakh crore in 2011-12.
Out of 389 SEZs notified, 170 are operational, Export Promotion Council for EOUs and SEZs (EPCES) said in a statement.
During 2012-13, SEZs have attracted a total of Rs 2.36 lakh crore investment and provided direct employment opportunities to over 11 lakh people, it added.
However, it said inconsistent tax Policy, especially with the introduction of minimum alternate tax (MAT) and dividend distribution tax (DDT), has discouraged investors.
To gather more investment in the zones, EPCES would organize road-shows in countries like the US, Dubai, Indonesia and Africa shortly.