Main objective of the Access Control is to begin with – protect physical, IP and human assets. This requires restricting unauthorized people from reaching pre-defined areas. Moreover, the basic question of who, where and when with adequate flexibility and scalability needs to be addressed with door access control system. To meet this requirement, we present an adaptive, modular, scalable and function-rich Access Control solution. It is designed to meet access control needs of any organization irrespective of its size, locations, layouts, and timings. In addition, a range of value-added features like Anti-Passback, 2-Person rule, First-In User, Blocked Users, Door Auto Re-lock, Guard Tour, Man-Trap and Smart Card based Identification ensures Fool-proof security of physical assets and safety of manpower.