I am providing you the details of the paper UPSC entrance exam below:

The details of the paper are as follows:
Total questions - 100
Total Marks - 200
Time allotted - 2hrs
Marks per question - 2 marks
Negative marks of 1/3rd (deducted for every incorrect answer)

Eligibility

You must have a degree from a recognized University or equivalent Candidates appearing for the degree examination are also eligible to compete subject to their submitting proof of passing the requisite qualification along with Detailed Application Form for Civil Services (Main) Examination.

For more details you can ask me any time.