You can refer below preparation tips to crack your exam

1- You should refer NCERT books for your preparation. Make sure your basics are clear. Don't use much reference books. You can use good recommended books for your preparation.

2- You can use previous year papers to understand the exam

Assuming for UPSC Civil Services, Here I am providing you anthe exam pattern for the same you can go through with given below link.

UPSC Exam Pattern

You can u se arihant new pattern series of mathematics,physics and chemistry. Or you can visit given below link for study material & test series.

Wb Jee Study material

hello aspirant......

these are the best books for the preparation of the jee mains

for physics

ncert

h.c.verma for physics

pradeeps fundamental for physics

for mathematics

r.d.sharma

s.l.loney for triogonometry

arihant for algebra and calculus

for chemistry

organic chemistry o.p.tandon

inorganic chemistry by j.d.lee

i hope this information is helpful

HI, While preparing for the VITEEE give importance to speed in working out the problems. Try to make your own strategy to crack the exam. Enhance your skills and try to master analytical skills with conceptual understanding. 

There would 125 questions to be attempted in 2.5 hours. You must be

Hi, PCM are 3 important main subjects. Also to know the complete syllabus you can even check it here: TS EAMCET Syllabus

Talking about the preparation:

• Understand the Syllabus: Before you start preparing for TS EAMCET, it’s imperative that you know the syllabus and the weightage of each topic thoroughly.

Hi, You can even refer to IIT preparation material-

Reference Books for KIITEE exam:

Physics:

• Concept of Physics Volume 1 by H. C. Verma ·
• Concept of Physics Volume 2 by H. C. Verma ·
• Problem in General Physics by I.E. Irodov

Mathematics:

• Complete Mathematics by Mcgraw Hills Education
• Comprehensive