Hello aspirant...

Hope you are doing good

For admission to IITs, NITs, IIITs, and other CFTIs, students in the general category must have earned at least a 75 percent grade point average in their class 12 board exams or place in the top 20 percent of their qualifying exam.

with 64% marks in 12th, you cannot appear for the jee mains in 2023.

Hope this information helps you.

All the best.