Hello, simran

Well, there is no official announcement about that yet ,  so, if it was like that then you just ho with full preparation if there was negative marking then it will on instruction on Ques paper or if it was announced before exam day that's as well  fine .visit the below link to read articles of neet everything about it

https://medicine.careers360.com/articles/neet-exam-pattern

Hope this will help you!!