In market there is many navigation systems like guide dog, assistive systems which are used for visually impaired person (VIP). Smart navigation system is a different than above mentioned systems because it gives combined service foe VIP. This system provides indoor navigation by using Radio Frequency Identifier (RFID), outdoor navigation by using Global Position System (GPS) as well as obstacle detection by using ultrasonic sensor. User will give the starting and ending location then this system will give voice instruction to reach at destination by detecting obstacle also. This system can specially use in big campus like industries, big institutes where it will act as guiding map.