In recent years, there have been rise in the number of applications based on Radio Frequency Identification (RFID) systems. RFID is an auto identification technology which uses Radio Frequency (between 30KHzand 2.5GHz) to identify object remotely. It have been successfully applied to different areas as diverse as transportation, health-care, agriculture, and hospitality industry to name a few. RFID technology facilitates automatic wireless identification using electronic passive and active tags with suitable readers. This paper deals with RFID based automatic gate entry control system (GECS) which is developed for the organisation to monitor and record the entry of the bus and driver with its timing related activities. Entire system is developed with low frequency RFID reader and passive tag at the one side and network based software application running at the other side. This RFID reader and Tag performs the operation to monitor which bus and driver entered or left the organisation with their timings. The entire information is stored in the computer by interfacing (serial interface RS232) with the reader. The updated information in PC is sent as an email to the higher authority which is used to monitor the information at anytime and anywhere.