Hello Dear,

No bonus marks are given by NTA for JEE-Main until and unless there is any wrong question. Bonus marks are only given when a particular question was incorrect in the examination or any of the options were not right, the students who would have attended these questions would get bonus marks equal to the marks that the question carried. If a student hasn't attempted the question, the he/she will not get any bonus marks.

For more information you can visit the link below:

https://engineering.careers360.com/exams/jee-main

Good Luck