A system and method, for identification of the user equipment [102] with IMS PDN connectivity issues, and proactively recovering the PDN connectivity for said user equipment is disclosed. The disclosure provides triggering the System [104] initiated detach with re-attach required request, to user equipment [102] by checking the current IMS PDN state of said VoLTE user equipment [102] to recover the IMS PDN connectivity. The present disclosure provides a novel automatic method for maintaining IMS PDN connection providing continuous voice call connectivity and improving the overall connectivity and user experience of the wireless network.