The first SEZ in India was established in 1965. Later SEZ Act 2005 was formed to clarify the concept of SEZs. The SEZs were projected to boost the export performance and generating extra economic activity. As expected, the policy initiative not received satisfactory response, however the establishment of hundred of SEZs across the country. Therefore it becomes very important to evaluate the economic performance of these zones. Hence the paper aim to study the export performance of these zones namely DLF Ltd, DLF Cyber City and Gurgaon Infospace Ltd which are functioning at present. The paper makes an assessment on economic aspects of SEZs.