Thapar University is one of the best colleges in India. It is one of India's oldest and finest educational institutions, which provides a steady source of highly skilled talent to the nation as well as overseas. Thapar excells at everything whether its the infrastructure or the comfortable accomodation or the food. The facult is very amazing and knowledgeable. It has a great placement cell where big companies and MNCs visits the campus to provide internships to the students.
So, you should definitely go for Thapar if you are getting a chance to.
Both are the good colleges & have same ranking but Manipal University is more expensive rather than Thapar University. And if you want to go Manipal then you need to contact them for the Migration process. for the Genuine reviews of these colleges you can go through with given below links.