Methods and systems for managing control data in a push-to-talk over cellular (PoC) communication are provided. A method includes: receiving, by a user equipment (UE), control data from a PoC server on a control plane and/or a data plane for a PoC session. The control data is not limited to a text control data, but also can include an audio control data and/or an image control data. Further, the method includes processing the received control data and sending the processed control data from a communication processor (CP) to an audio device and/or an always on display of the UE through a direct communication channel set up between the CP and a low power processor (LPP), without waking up an application processor (AP) of the UE. Thus, the method effectively reduces battery consumption of the UE to lowest possible level.