Dear Ankush

There was no bonus marks in NEET2018 for the students.

However, in NEET2017, 8 marks was given as a bonus for two questions.

This year in NEET2019,many students have also challenged the neet answer key as it is claimed to be incorrect for atleast for 4 questions(3 bio+1phy).

Up until now,there has not been any annoucement/notice regarding the same.

It is advised to be in contact with official website of NTA NEET2019.

Hope this helps you.