Indian Journal of Science and Technology, Vol 9(28), DOI: 10.17485/ijst/2016/v9i28/91211, July 2016 ISSN (Print) : 0974-6846 ISSN (Online) : 0974-5645 * Author for correspondence 1. Introduction With the modernization in the urban level and the advancement in the field of technology, there has been an unwanted rise in the number of vehicles which in turn had aggravated the problem of stealing of vehicles. To solve this problem of finding stolen cars we are using Radio-frequency Identification (RFID) technology 1 . RFID represents an improvement over bar codes. RFID, one of the by-products of the technological advancement, relies heavily on storage and remote retrieval of data using devices called RFID tags or transponders. e technology relies heavily on cooperation between an RFID reader and an RFID tag. A read write memory is present with every RFID Tag installed in a device. A device meant for tracking reads the data when the vehicle approaches the toll system and uses a comparison algorithm to compare it with the data in the computer database 2,3 . If the Unique IDentification (UID) code matches with the UID code of the stolen vehicle then the toll gate will remain close and the stolen vehicle will be detected. But if the UID is not in the defaulter list then the gates will open automatically. e entire system is proposed as an intelligent system. is accounts for the detection of stolen vehicles in an easy and economical way. e UID code of the stolen vehicles will be entered in the system by the administrator. e administrator will also have a separate RFID tag which will have an inbuilt UID code. If this UID code matches with the UID code present in the program then the administrator will have the authority to add or delete the UID of the stolen vehicles.  RFID has many advantages: very high precision, high ability to adapt and fast efficient operation and so on. Moreover, it has the ability to work under harsh environment and can function effectively from a long distance. e proposed method is divided into four broad areas to achieve the target: • Entering the UID code of the stolen vehicles • Reading the RFID tags • Matching the UID code of the car with the database • Catching the stolen vehicle In the project there will be an admin who has the power of adding or deleting the UID code of the stolen vehicles. e admin will have a RFID tag in which UID code will be stored. When the admin will come near the toll plaza, the RFID reader (which is stored in the toll Abstract The process of detecting stolen vehicles on roads has become very difficult due to increase in the number of vehicles. The proposed technique facilitates the circumstance and aides in finding the stolen vehicles by using intelligent systems. The method is implemented using Radio Frequency IDentification (RFID) tags, Unique IDentification (UID) code, microcontroller, Arduino and LCD display. The modules incorporated extract the UID code from RFID tag and compare with the UID which is already present in database. In the case of matching, the stolen vehicle will be detected and information will be displayed to the administrator at toll plaza. The deployment of this method will provide the details of stolen vehicles without direct contact of vehicles. It has many advantages such as high precision and the system can work under extensive environment and recites from long distance. Keywords: Arduino, Microcontroller, Protection, RFID, UID, Vehicle, Warning Optimized Warning and Protection System for Vehicle Using RFID-based Networks Bhulakshmi Bonthu*, Arunava Kar and J. Jabanjalin Hilda School of Computer Science and Engineering, Vellore Institute of Technology, Vellore – 632014, Tamil Nadu, India; bhulakshmi.b@vit.ac.in, arunavakar.cse@gmail.com,