Disclosed is a system for dynamically modifying settings of a communication device based on an activity state of a user of the communication device. A data capturing module captures values corresponding to a plurality of physiological parameters associated to a plurality of activity states of a user. The values may be captured by using one or more wearable devices worn by a user. A configuration module enables the user to configure one or more rules and one or more events, to be triggered, corresponding to each of the one or more rules for modifying settings of the communication device. An activity state determining module determines an activity state, in real-time, from the plurality of activity states. An event triggering module triggers an event, of the one or more events, based on a rule configured corresponding to the activity state in order to dynamically modify the settings of the communication device.