B.Tech Admission Process

You can get admission there through JEE Mains or MHCET.
You have to score minimum 50% marks in your 12th to be eligible.
I am attaching a link which have all the information in detail.

Thapar Institute of Engineering and Technology (TIET) is one of India's oldest educational institutions. Rated amongst the top-ranked innovation-driven private and technical institutes in the country, Thapar Institute of Engineering & Technology has been accredited with an 'A' grade by the National

Yes, COEP provides a lateral entry in computer science to Diploma holders.To know all the detail information to take admission in COEP visit the below Shiksha link.
https://www.shiksha.com/b-tech/course/b-tech-lateral-entry-college-of-engineering-pune-shivaji-nagar-204728.
Hope this helps you.
Be free

AP EAMCET is an entrance examination conducted by government of Andhra Pradesh for admission in state level engineering colleges, similarly TS EAMCET is an entrance examination conducted by the government of Telangana state for admission in state level engineering college of Telangana.

Please specify the course you are trying to seek.

Admission is through counselling based on the rank obtained in Diploma Common Entrance Test (DCET) conducted by Karnataka Examination Authority.
Check out the link below for more details :
https://www.shiksha.com/b-tech/course/b-e-in-mechanical-engineering-lateral-entry-k-s-institute-of-technology-ka

He should focus on basics and practice more and more.
Before clearing an entrance exam all the branches have same criteria.
It may vary college to college due to their facility and infrastructure.
If he wants to join ece just tell him to focus on practice and fallow what teacher is saying in his classe

Colleges in different states have different criteria for admission. Add details about your region and qualification to get proper information.

Hi, Meaning of grace marks may vary for every university. But generally, it means some relaxation in the admission policy. Thanks.