PhD Scholar, Department of Computing & Technology Iqra University, H-9 Campus, Islamabad Mr. Zeeshan Ashraf Registration No. 30624 will defend his PhD dissertation titled “Robust and Lightweight End-to-End Secure Communication Model for Large Scale Hybrid IPv4-IPv6 Virtual Networks” on Wednesday January 10, 2024 at 02:30pm. Zeeshan Ashraf has completed his PhD dissertation under supervision of Dr. Adnan Sohail.