Special Economic Zone area amendment adjusts notified and de-notified land, altering resultant area under SEZ Act authority. The Central Government, exercising powers under the Special Economic Zone Act and Rules, amended the Manikonda sector-specific IT/ITES SEZ by including additional land and de-notifying a portion of previously notified land, resulting in a revised resultant area. The change follows the developer's proposal, governmental approval after statutory compliance, and is recorded in a formal notification specifying survey number and area adjustments.