Hello.

NCERt books are the foundation upon which you. An build your knowledge. These books are the basics and the most important books as they give you an understanding about all the important topics and in am easy way. If you read the NCERT Books properly, then you will develop an in depth understanding and can write answers more efficiently. However, you also need to go through few guide books as extra help. Given below is a link that will tell you how to prepare for the exam, please click on it!

https://school.careers360.com/articles/nios-books-for-class-12