i have no money to bye dlp and book so how we get 140 marks in jee

In order to get good marks in JEE you should be determined and self motivated. To crack JEE it is not compulsory to go for DLP course you can also crack your exam by self study. There are many students who cracked the exam with self study.

If you preparing by your own make sure you don't skip your school classes. You should make your own notes which will help you in revision.

Make sure you go through NCERT books thoroughly it will help you to build strong base. Refer previous year papers to understand the paper pattern and level of exam. Go for complete mock test series for your practice,

You can also recommended below books for your preparation-

Best Physics Books for JEE Preparation:

• Concepts of Physics by H. C. Verma
• Fundamentals of Physics by Halliday, Resnick and Walker
• Problems in General Physics by I. E. Irodov
• University Physics by Freedman and Young

Best Mathematics Books for JEE Preparation:

• Higher Algebra by Hall and Knight for Algebra
• Coordinate Geometry by S.L. Loney
• Differential and Integral Calculus by N. Piskunov
• Calculus and Analytic Geometry by Thomas and Finney for Calculus
• IIT Mathematics by M.L. Khanna
• Course in Mathematics for IIT-JEE by Tata McGraw Hill publications
• Problems Plus in IIT Mathematics by A Das Gupta
• Trigonometry by S L Loney

Best Chemistry Books for JEE Preparation:

• University Chemistry by Freedman and Young for Physical Chemistry
• Organic Chemistry by Morrison and Boyd for Organic Chemistry
• Organic Chemistry by Solomons and Fryhle for Organic Chemistry
• Concise Inorganic Chemistry by J. D. Lee for Inorganic Chemistry
• Modern Approach to Chemical Calculations by RC Mukherjee

All the Best!!

You can find the best study material online also. I am sure  a lot of it is available free. You can also  try to seek help on the social media, may be some will surely come out to help you in this regard.

Do not be disheartened. Make use of technology and internet and I am sure you will come out in  flying colours. Just believe in yourself.