This paper deals with the implementation of emotions in mobile robots performing a specified task in a group to develop intelligent behavior and easier form of communication. The overall group performance depends on the individual performance, group communication and synchronization of cooperation. With the emotional capability, each robot can distinguish the changed environment, can understand colleague robot's state, enables adaptation and reacts with changed world. The adaptive behavior of a robot is derived from the dominating emotion in an intelligent manner. In our control architecture, emotion plays a role to select the control precedence among the alternatives like behavior modes, cooperation plans and goals. Emotional interaction is happened among the robots and a robot is biased by the emotional state of the colleague robot in performing task. Here emotional control is used for better understanding to read the colleague's internal state, for faster communication and better performance eliminating dead time.