Some good tips for preparation of JAM IIT (Joint Admission Test Indian Institute of Technology) Entrance Exam for admission in M Sc are as follows:

Start preparing well in advance
Make a proper Time Table
Join Coaching Institute
Getting acquainted with syllabus
Follow Syllabus
Refer to past question papers
Take mock exams
Refer to IIT JAM books
Prepare Short Notes
Study for 12 Hours daily

Last minute preparation tips:

• Try and solve as many past year question papers as you can. It will give you an insight into the kind of questions which are generally asked.
• Solve mock test papers available online as it will help you strategies your time management techniques.
• Try referring to IIT JAM books by various authors.
• Make short memory cards to help in last minute revision.
• Devote more time towards revising topics which have more weightage in comparison to others.
• Do not start a new topic at the last minute! Instead revise the topics you have already completed.
• Most importantly keep your calm and don't panic.

Exam pattern: JAM IIT

JAM IIT question papers are descriptive or objective in nature based on the subjects one chooses. IIT JAM comprises eight subjects:
• Mathematical Statistics
• Mathematics
• Chemistry
• Geophysics
• Geology
• Physics
• Biotechnology
• Computer Applications

The descriptive papers are divided into two parts Part I and Part II

Part I comprises 60 percent marks and contains one-mark and two-mark multiple choice questions. A negative marking of 1/3rd is applicable for wrong answer of one mark each and a negative marking of 2/3rd is applicable for a wrong answer of two marks each.

Part II comprises of 40 percent marks and is subjective in nature. There is no negative marking in this section.

Some Useful Books
Mathematical Methods In The Physical Sciences: Mary L Boas
An Introduction to Mechanics: Kleppner and Kolenkow
Waves and Oscillations: N.K. Bajaj
Introduction to Electrodynamics: David J. Griffiths
Quantum Physics: H.C. Verma
Solid State Physics: S.O. Pillai