Patient tracking is a sophisticated process designed to monitor patient's movements, outside conventional clinical settings such as hospitals, clinics, diagnostic center and laboratories. This increases the access to care, and minimizes health care costs. Many health care providers have started incorporating this method which has significantly lowered the personal costs of patients, reduced complications and improved quality of life of patients. Event driven patient tracking usually involves monitoring and maintenance of patient's medical records, either manually by entering the details of patient's locations, or by use of software's (RLTS, RFID, GPS, etc.) and hardware components such as sensors, detectors and others. Manual entries are made by an authorized person, usually a doctor or a caregiver, who makes entries whenever an event takes place. Software and hardware use technology to track the patient's whereabouts, triangulating their positions based on their last known locations. Previously, manual methods or approaches were adopted by healthcare providers for event driven patient tracking, but changing market dynamics, increasing focus on a patient centric approach, and rising financial and operational costs of hospitals, have shifted the trend towards sophisticated systems to monitor patients.