Ncert the most important book for all the subjects you just need to learn thoroughly all the books of NCERT of all the subjects .

Other than that for mcqs ... NCERT fingertips MCQ book for biology , chemistry , physics or uh can also follow this books mentioned below

Biology - Dinesh 

Physics - USS, Arihant 

Chemistry - USS 

Hope uh get it all the best for exams

Yes its sufficient enough however we recommend you to also prepare from reference books for additional preparation so you can solve all level of questions incase exam is difficult. 

You must also solve last 5year questions papers  

Ljst of all suggested books below. 

https://medicine.careers360.com/articles/best-books-for-neet