Hello aspirant,

As per the eligibility criteria for JEE Mains 2021, you are not eligible with a percentile of 63%. According to the rules and regulations, if you are from general category, you must have passed class 12th from a recognized board with an aggregate of 75% and if you are from ST/SC category, you must have passed with an aggregate of 65%.

For more information, go through the link given below-

https://engineering.careers360.com/articles/jee-main-eligibility-criteria

Hope, it helps you.