What is an SEZ?
A Special Economic Zone (SEZ) is a specially demarcated area of land, owned and operated by a private company, which is deemed to be foreign territory for the purpose of trade, duties and tariffs. SEZs will enjoy exemptions from customs duties, income tax, sales tax, service tax. After the passing of the SEZ Act by Parliament in June 2005, the law came into effect in February 2006, though some states like Gujarat had passed provincial SEZ legislation in 2004.