Sampath, the GAT syllabus for 2020 exam comprises of the following:

• Quantitative Aptitude: This mostly consists of basic mathematics of 10+2 level.
• Analytical and Logical Ability: This is to check your inference based thinking.
• English Comprehension and Effective Communication
• General Knowledge and Current Affairs
• Situation- based Case Study to check your problem solving approach.

In general, there are many books available but it is best to practice from the NIFT Entrance Exam Self Study Guide by Arihant publication as the questions are based on the previous years' papers. Else you can also go through the following books:

• NIFT Exam Guide by Dr RP Datason
• NIFT Entrance Exam Guide by D Mittal
• NIFT Previous Years' Papers (Solved) by Ramesh Publishing House

You can also go through the given link to practice the previous years' questions and other sample papers: https://design.careers360.com/download/nift-entrance-exam-sample-papers-previous-years