Hey Aspirant, admission to candidates in Jaypee Institute and Thapar University is given on the basis of rank secured in JEE Mains.

But These colleges are not included in official counselling called JOSAA so in order to get admission, you will have to apply separately in both of the colleges.

Hope you will understand.

You can visit the following links to know more about the admission process in Jaypee and Thapar University respectively:

https://www.careers360.com/university/jaypee-institute-of-information-technology-noida

https://engineering.careers360.com/articles/tiet-btech-admission

Goodluck.