I am guessing that your question is that if you score good in betterment exams and a good rank in NEET if you can get into BJMC, Gujarat. First things first. Your +2 marks are only a qualification criteria to allow you to attempt NEET. You don't get additional benefits with your +2 marks. And cut off marks change from year to year. This depends on the no. of students who have appeared for the exam and the difficulty of the exam. If the exam was very difficult then the qualifying marks will be less and vice versa. And then there is the category that also affects the merit list. I would suggest you to go through this link to understand previous cut offs. https://medicine.careers360.com/articles/neet-cutoff-gujarat