Short Message Service (SMS) is a service that enables someone to send text message from his or her phone to friends, relatives, associates and so on. It is also possible to send text message via the internet using an SMS enabled online system. SMS is becoming more popular day by day as it has been noted to be one of the most effective way of communicating to people that belong to the same group or have common interest and for marketing or promoting products/services. The process of mass messaging is often referred to as bulk SMS messaging. SMS has made it possible to reach people in few seconds and place information directly “in the palm of their hand”. The recipient's direct response to such information has been noted to be very high.