Dear J V,

While calculating the marks of your Class 12, you have to include marks of the practicals. As per the eligibility criteria of NEET, you need to score at least 50% (40% for SC/ST/OBC) in Physics, Chemistry and Biology/Biotechnology (PCB) in Class 12th. This percentage stipulation includes the practical and theory marks both. 

Now, since with practicals, your score is coming out to be 57% (assuming it includes PCB), you are eligible to appear for NEET. 

Hope it clears. 

All the best!