Best ITIL Exam Center in Chennai AllTechZ Solutions is the Best Exam Center in Chennai. AllTechZ located in near by Velachery Railway Station, Just 5 mins walk-able distance from Vijayanagar Bus Stop and 1 min distance from Velachery Railway Station Bus Stop. ITIL, formerly known as the Information Technology Infrastructure Library, is a set of practices for IT service management (ITSM) that focuses on aligning IT services with the needs of business. The ITIL qualification scheme provides a modular approach to the ITIL framework, and is comprised of a series of qualifications focused on different aspects of ITIL best practice to various degrees of depth and detail.