Till now, there is no change in the pattern that it will be subjective only change which is made that it will be online from 2018.

In order to prepare make sure you solve as many as online mock test paper for your practice. So, you get familiar with the test enviornment.

All the Best!!

Cracking the JEE Advanced needs to have a very well-structured study strategy. It demands the students to be academically strong as well as have other skills like analytical skills, time management, exam taking strategy, and situational intelligence.

Tips for The preparation of Physics:

1. Learn Formulas Thoroughly: As you study Physics, note down all the formulas and remember them by heart.
2. Learn Derivation Of The Formulas: Learning the derivation of the formulas helps in memorizing and understanding them better.
3. Concentrate On Scoring Topics: Once your basic concepts are cleared, concentrate on the scoring topics like Mechanics. Pay extra attention to Thermodynamics as it is common to Physics and Chemistry .

Books to study:

Concepts of Physics Vol I and II by H.C. Verma

Fundamentals of Physics by Halliday, Resnick & Walker

Problems in General Physics by I.E. Irodov

Tips for The preparation of Chemistry:

1. Improve Your Concentration And Application Skills: In Inorganic Chemistry, concentrate mostly on the concepts, the processes, and their applications.
2. Study With Patience And Attention: Be careful and patient while studying Organic Chemistry.
3. Practice Reactions: Practice the most important topics, equations, mechanisms, and related problems regularly.
4. Regular Revision: Chemistry seems to be confusing to many students. Regular revision of Chemistry is a must for better retention.

Books to study

Physical Chemistry by O.P. Tandon

Organic Chemistry by Paula Bruice Yurkanis

Tips for The preparation of Maths

1. Conceptual Clarity: Clear the basic concepts of all the chapters. Maths is full of formulas. In order to remember them by heart, understand and practice the derivations of the formulas regularly.
2. Take Mock Tests: Taking full-length IIT JEE mock test help in improving your speed and accuracy. It helps to build stamina.
3. Solve Practice Questions: Solving JEE Advanced practice papers after completing every chapter is a must.

Books to study

Maths XI & XII by R.D. Sharma

Plane Trigonometry Part 1 by S.L. Loney

Problems in Calculus of One Variable by I.A. Maron

Firstly I would suggest you to prepare with NCERT books then prefer other books.

Good Luck!