Hello dear student,

As you said you did not have biology as a subject in your class 12th and you want to appear in NEET. You also willing to take a drop. Eligibility criteria for Neet is you need to have at least 50% of the aggregate marks in physics chemistry and biology if you are a general category student. While if you belong from SC or st category then you need to have minimum percentage of 40% aggregate in physics chemistry and biology. If you think you are having less marks in physics or chemistry then you can apply for these also otherwise it is completely fine there is no need to appear again for physics and chemistry. I hope this was clear and helpful for you

Thank you