Manisha, there is no upper age limit for NEET as of now. So as long as you fulfil the eligibility criteria, you can appear for NEET. The only disadvantage that might seem from dropping a year is that God Forbid if things don't work in your favour, you would have wasted couple of years. So it is always good to have a Plan B. What we would suggest is before taking another year drop for 2021, wait until NEET 2020 results have been declared and the Counselling process is completed. You can gauge your performance and then take a call accordingly. Also if you are certain of taking a drop for 2021, you can enroll yourself for a distance course in Bachelor's degree so that you have a plan B. NEET 2021 is still a year away. So lets see how you fare in NEET 2020 so as to take a call accordingly.