JEE Advanced

Hello Pankaj,
The first thing that you should do for any topic in any subject is go through the NCERT chapter. I would strongly recommend that you do the NCERT irrespective what your teacher says.
So, the first thing to do is read the NCERT chapters thoroughly and this includes any side notes or extra information that may or may not be part of the CBSE boards syllabus. Once you have completed the exercises for the relevant topic, you are ready to move to the next step.
Once you have finished the relevant sections from the NCERT textbook, you can move on to a more "advanced book". This book would differ with subjects and may differ on different topics within the subject.
Chemistry
1. University Chemistry by Bruce Mahan for Physical Chemistry
2. Organic Chemistry by Morrison and Boyd for Organic Chemistry
3. Organic Chemistry by Solomons and Fryhle for Organic Chemistry
4. Concise Inorganic Chemistry by J. D. Lee for Inorganic Chemistry
5. Modern Approach to Chemical Calculations by RC Mukherjee
Physics:
1. University Physics by Freedman and Young
2. Fundamentals of Physics by Halliday, Resnick and Walker
3. Physics for IIT-JEE series by B. M. Sharma.
4. Problems in General Physics by I. E. Irodov
Mathematics
1. Higher Algebra by Hall and Knight for Algebra
2. Textbook of Co-ordinate Geometry for IIT-JEE by A. Majeed for Co-ordinate geometry
3. Problems in Calculus of One Variable by I. A. Maron for Calculus
4. Calculus and Analytic Geometry by Thomas and Finney for Calculus
5. Vector Algebra by Shanti Narayan
6. A textbook of Matrices by Shanti Narayan
7. Course in Mathematics for IIT-JEE by Tata McGraw Hill publications.
8. Problems Plus in IIT Mathematics by A Das Gupta
9. Trignometry by S L Loney
All the best.

The answer to this question is:
Cracking Advanced is only possible if you have studied for your board and Mains thoroughly otherwise not because advance preparation needs a thorough hard work and dedication of at least one year.
So, assuming the first case to be fulfilled, the precious tips are:
Try to increase your study duration up to 10 or 12 hours per day focusing more on more the conceptual point of the syllabus.
Don't try to study extra points other than the syllabus mentioned in the Advanced brochure as really it will not come in the exam.
Solve all previous year's questions and learn each and every concept of that.
Also, don't skip your Advanced preparation at the time of boards as it will break your link through the Advanced.
Thank you and best of luck.

This is really a challenging task as just getting a good book is not enough, you need best mentors and preparation for JEE from Class 8th then only one can get perfection in their subjects to score best marks in the exam.
For the concepts, if you like to be absolutely clear then apart from your notes, you can consider the following textbooks:
a) Physics: HC Verma, DC Pandey, Resnick and Halliday Walker and NCERT.
b) Maths: I A Maron for Calculus, S L Loney, Amit Agrawal, IIT-Mathematics by ML Khana and NCERT.
c) Chemistry: NCERT, OP Tandon, JD Lee, LG Wade, Morrison Boyd and NCERT.For practice questions, you can look into these:
a) Physics: Irodov, D Mukherjee and DC Pandey.
b) Maths: Loney, TMH, Cengage and coaching package.
c) Chemistry: OP Tandon, OP Agarwal, RC Mukherjee and P Bahudar.
d) Online: Eagerbug
NCERT Exemplar Problems books are also needed.
The previous year question papers need to be solved and one can also have to go with the package of resonance or Allen and their test series for scoring such rank in JEE Advanced exam.
All the best.

Based on the individual subjects, here is what you should do and where you can focus upon a bit more:
Physical Chemistry: Remember the formulae and practise the questions. Focus: Thermodynamics.
Inorganic Chemistry: Do a little bit of reading from the start so you are in touch with it constantly. Focus: Analytical Chemistry.
Organic Chemistry: It also demands constant and regular efforts. Focus: Reaction Mechanisms.
Mathematics: Make a chart of all the formulae. Practice a great deal. Remember 3 Ts: Tips, Tricks and Techniques for each topic. Focus: Calculus.
Physics: Remember the concepts and practise the questions. Focus: Mechanics.
Tips for preparing for JEE Advanced 2018:
You must understand that there is no such thing as an important topic. All topics are important, questions can be set from any topic. You just have to do your best. Since you have time, don't leave any topic unattended.
While practising, highlight the questions which you find tricky and conceptual for future reference. Every day, cover topics from all the three subjects. It helps you to maintain a balance right from the start. Make a schedule which would work on eliminating your weak links and strengthening your strong ones. Try to stick to it.
After topic wise revision, you should start with the test series, online or offline, quite early. As it creates an exam-like environment, you would come to know your mistakes and shortcomings and you can work upon them.
JEE Advanced is all about quality and not quantity. It is better to focus on things and get a better understanding than having a basic idea of all the topics. If you have decided to study for IIT JEE Advanced in 1 year.
Stay motivated:
A major obstacle in the path of your glory of JEE Advanced will be the difficulty to stay motivated throughout. One year is a very long time. Most people usually fall prey to distractions, deviate from the track and lose interest. It is very late by the time they realize a lot of time have been wasted by them and the ball remains no longer in their court. If you are easily distracted, it is advisable to join a coaching centre or enrol for test series.
If you couldn't clear JEE Advanced in the first attempt, take it as a challenge, perhaps your first learning of life. Trust yourself. With hard work everything is possible.
All the very best.