A method of providing network service to a user equipment (UE) may be provided. The method may include identifying an event associated with a first subscriber identity module (SIM) from a plurality of SIMs, wherein the event includes at least one of: non-availability of a network service over the first SIM, a condition that a critical data session is on-going for at least one application associated with at least one SIM from the plurality of SIMs in the UE, and a condition that a power saving criterion is met. Further, creating an enhanced packet data gateway (ePDG) interface for the first SIM using a physical interface as mobile network of a second SIM from the plurality of SIMs, and providing the network service associated with the first SIM using the ePDG interface.