This report studies various technologies which can be used for people tracking and crowd management. During any pilgrimage session, the events like losing a group member, medical emergencies, and stampede are very common. In case of disasters like flood, fire, earthquake pilgrims are often left stranded as they have a little knowledge about that area. To address these concerns, the authorities need information about the location and direction of movement of the pilgrims. Sometime, it may be necessary to identify a person in cases like a lost child, unconscious or dead person. Researchers have proposed a number of solutions using the wireless technology which includes RFID tags, NFC, GPS, Bluetooth and Wi-Fi. An introduction about the technologies and how they can be used to design systems for people identification and tracking is presented. The various systems using a set of technologies have been studied in terms of their effectiveness and the cost.