Hello Rajnish,

DU JAT is one of the most popular entrance exams and some tips and tricks should help you to crack the exam with flying colors. Since you are preparing for the exam by a home study, it is therefore necessary that you prepare smartly. Emphasis on the topics which have carries more significance in terms of score.

Read lots of newspapers because they will help in building your general knowledge as well as your vocabulary. The quantitative ability can be prepared if you thorough enough with your 11 and 12 standard course.

Coming to your question, there are a few books which can guide you to cracking you DU JAT exam with a good score. They are as follows:

1.       1. Verbal and Non Verbal by R. S. Agarwal.

2.       2. High School Grammar by Wren and Martin.

3.       3. Quantitative Aptitude by Arun Sharma

4.       4. Quantitative Aptitude by R. S. Agarwal.

5.       5. BBA: Entrance Examination – 16 Practice Sets for BBA – BBS, SET (GENERAL)

6.       6. University of Delhi BMS/BBA (FIA)/B.A. Business Economics Joint Admission Test Guide: BMS (Bachelor of Management Studies) by Sima Kumari

7.       7. Self-Study Guide BBA/BBS/BBM Entrance Examination (Arihant Experts)

8.       8. A Complete Self Study Guide BBA/BBS/BBM (Bachelor of Business Administration/Studies/Management)

9.       9. Edge Advantage Series – BBA 10 Practice Sets

Hello Rajnish...

JAT examination mainly conduct 4 sections such as General english, Logical reasoning, Quantitative ability, Business and general awareness respectively. Here are some study material you can reffer for JAT exam.

1. General English

   English Grammer & Composition by Wren & Martin   

   Objective general english book by Arihant publication

2. Logical Reasoning 

   Verbal & Non-verbal reasoning by R.S. Agrawal

3. Quantitative ability

    Quantitative Aptitude by R.S. Agrawal

4. General Knowledge

    Regular newspaper reading including current affairs, monthly GK comics

    General knowledge by Arihant publication

As you mentioned cost wise all these books are very cheap and they are universal reference material so you can use them for other exams too. Also you can see videos on youtube regarding JAT exam .

Hope you get it.