Hello Akshita ,thanks for asking this question on this platform.as you know no one is perfect in any skill from this all depends upon your practice and dedication or willingness to learn anything .so firstly Don't think that you will not be good in drawing in future just give your best and practice more and more .

For more details about the NIFT exam you can go through this 

https://design.careers360.com/exams/nift-entrance-exam

Thanks