Abstract: To fulfil the dynamic requirements in cloud environment there is always a need to migrate virtual machines from one place to another. It also helps in managing load balancing, power saving and maintenance activities such as management of faults due to resource failures, power failure, etc. There are two types of hypervisors which can be used for virtualization, i.e., open source and proprietary hypervisor. Most of the time practitioners have used proprietary hypervisors as compared to open source hypervisors because they consider open source hypervisors have less functionality. This research study focuses on to examine the efficient virtual machine migration technique in various scenarios with the motive to save cost. The study uses Kernel-based virtual machine, open source hypervisor for the experiment. The study also compares the virtual machine migration results using open source hypervisor, KVM with a proprietary hypervisor, Xen.