Hi Asheesh090,
Before you start the deployment, please check out this document.
https://www.microsoft.com/en-us/download/details.aspx?id=41936
Therere some important points and tips on running Lync Server in a virtual environment which others might find useful as a quick reference or when getting started.
1. Its recommend to use Windows Server 2012 R2 Hyper-V. Windows 2008 R2 hypervisors are supported but not recommended, as they are limited to guests with four cores.
2. The vCPU to pCPU ratio must be 1:1 for media workload guests and may be 1:2 for non-media workload guests.
3. Dynamic memory is not supported.
4. Dynamic disks are not recommended. Fixed and Passthrough disks are recommended.
5. Pool servers (such as Front End Servers, Edge Servers, and Mediation Servers) in the same pool should be on separate physical host servers to improve resiliency.
Hope this can be helpful.
Best regards,
Eric
And there's a nice eBook for your reference. This book gives step by step instructions on how to install Lync Server 2013.
https://gallery.technet.microsoft.com/office/Lync-Server-2012-9d6fe954
Best regards,
Eric