My friend studies at Thapar University and absolutely loves the internet speed there amongst other merits. Both the campus and hostels have Wi-Fi connectivity. The internet access speed has gotten better over the years. Till 2017, there was a limit to use only 1 GB in a day, but now there's no limit upon the usage.
If you are planning to stay at the hostel, you can use the Access point named 'EACCESS'. It gives a speed range between 1.1-1.4 MBPS. The academic block, library, and cafeteria work under the access name ‘TU’ and it varies from 600 kbps to 1.2 Mbps.
The fastest Internet is available at the Computer Center with a whopping speed of 500 Mbps. The Library has a LAN cable and its speed is around 100 Mbps.
Also, during exams, social networking sites like Facebook, Youtube, Instagram, etc are banned. But you can access that through proxies and other ways of access.