Hey Abhrajeet!!

I want to say that every book is best in its own way. If you thoroughly read any book. You will find similar things. In some , there is extra information for you whereas in some they are to the point. You have to choose it according to your needs. Here, you want chemistry book just for your board exams so you don't have to waste your time for gathering on extra information. I am suggesting some books. You can refer to them.

1) NCERT : it is must for your basic understanding and numericals for physical part.

2) pardeep's publications: Use it as a reference books to make your concepts clear. Though, it don't have too much extra information which is suitable for boards 

3) Xam idea book: This is a sort of sample paper and question bank. With this you can cover all previous year questions with good amount of practice questions.

With these, you can easily score good marks. 

Best wishes.

Hello.

For board NCERT textbook is  the best book (for both physics and chemistry).

It contains all the required topics and also helps for competitive purpose too.

Chemistry ncert book is also  reffered textbook for jee mains (mainly  for inorganic).

So ncert text is preferable for board and even for competitive purposes.

Thank you.

For any other information, please do comment/post