Hello student to get admission in B.TECH course you need not to appear and qualify Jee Advance. As admission is on the basis of rank/marks obtained in Jee main entrance examination.

Admission in B.E /B.TECH is through Jee main paper 1.

Cut off vary every year on various factors like level of questions, number of seats and total number of of applicants.

Cut off are different  depending upon their home state and category.

I request you to please help me with your home state and category so that I can check and provide you the exact information about cut off.

Jee main eligibility - Candidates must passed class 12 in physics chemistry and mathematics from a recognized board.

There's no minimum percentage criteria.

For more details refer to the link mentioned below - https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-cutoff-for-nit-goa/amp

Feel free to comment if you have any doubt

Good luck