Dear candidate, hope you are doing well. Yes , NCERT is enough for JEE advance but only for 85%. NCERT is the Bible for chemistry. You just need to read it line by line for more than four to five times and memorize it by heart. It is more than enough for JEE main but for advance level you can refer to different reference books like GRB by Dr. O. P Tandon. Also it is very much important to practice previous year questions for which you can use Arihant publications. Mostly there are repeated questions and the type of the question are similar.

Hope this helps you .

All the best