Dear Mayank009
it seems your preparation is upto the mark. Just some advice while giving the exam

1. Have a very good sleep before the exam night. Fresh mind will help you to concentrate for those painful 4 hours.
2. Try to avoid breaks but if required take a short quick 5 min break after attempting 75-100 questions.
3. Don't panic if you see hard questions, Just mark and revisit them later.
4. If you think you are confused on the right answer,suggest you to dont waste any more time, Mark it and proceed further. in this way you will have time to answer relatively easy questions which might come later.
5.Keep calm, Dont Panic and Trust your inner instincts.
6. dont waste your time on numerical questions if you are not getting the right answer.Mark it and proceed for the next.

Point here is not to waste unnecessary time on guessing the right answers.

Most important advice

1. Please please read the questions well. dont jump on the options given directly.

2. Study these topics well, you have a chance to get 50 correct answer easily

a. Tuckman Ladder
b. HR motivational theories
c. Types of contracts
d. Communication Channels formula & numerical
e. S curve analysis
f. Conflict management
g. Types of organization i.e matrix, functional etc

I am sure these suggestions will help you to clear your exam in 1st attemp

all the best !!! dont panic and be cool... You will kill the exam

Thanks
Tushar
PMP