The embodiments herein provide a method of acquiring a plurality of system information messages in a radio communication network. The method comprises the steps of overlapping a plurality of system information windows and acquiring the plurality of system information messages for which the system information window overlaps in the user equipment. The method of overlapping the system information windows comprises of transmitting system information scheduling configuration containing scheduling information list, calculating start sub-frame and start radio frame of the system information window for the system information messages from the scheduling information, determining occurrence of system information window overlap of the system information messages and acquiring a plurality of system information messages in the overlapped system information windows. The system information acquisition is performed until the plurality of system information messages in the overlapped system information widow is acquired.