Migration is possible to Thapar University in the month of December.
Each year Thapar conducts an entrance test in December to fill its vacant seats. The test is prepared from 11th and 12th curriculum, but it also contains some questions from first semester subjects.
Thapar University updates all the related information on its official website.
A few of my friends graduated from Thapar University and here are some facts for you which might give you better information.
You can migrate to Thapar University in December as it conducts an entrance test for the remaining seats of the university. The regular first-year students may also apply for getting their branches upgraded if the seats are vacant.
The test is based on the course of 11th and 12th grade and some of the first semester subjects.
Do check with Thapar Institute of Engineering and Technology University to stay updated. Also, keep a watch on the official website of Thapar University to apply for the December test.