Hi Aachal,

Eligibility for NEET exam is given as follows:

• Minimum Qualification: The candidates must have passed class 12th exam or its equivalent exam with a minimum of 50% aggregate of marks to be eligible for NEET.
• Subject: The candidate must have studied Physics, Chemistry, Biology/Biotechnology and English as compulsory subjects in their class 12th.
• Open School(s) or Private candidates: Candidates who have passed Class 12th from Open Schools or as Private candidates are also eligible to appear for NEET 2019 exam.
• Minimum percentage: All candidates appearing for NEET exam must score a minimum percentage of marks given below for the subject combination: Physics, Chemistry, and Biology/ Biotechnology. That is for gen - 50% in PCB, ST/SC/OBC - 40% in PCB.

So these are the education eligibility for NEET and this did not mentioned that any backlog student cannot appear for NEET exam and maths is not even metioned , so yes you are eligible for this exam.

Hope this helps you.