Hi

There is no exemption for category students on the number of questions needed to be attempted . The question paper,  paper pattern, marking scheme, negative marking for wrong answers is the same for everyone attempting UPSC preliams irrespective of caste. However there is a certain percentage of seats fixed for caste category candidates in UPSC like in every government sector jobs.

UPSC preliminary examination comprises of 2 compulsory papers of 200 marks each.

Paper 1 general studies - 100 questions for 200 marks.

Only this paper will be considered for preliams cut off.

Paper 2 general studies (CSAT) - 80 questions for 200 marks

This paper is of qualifying nature. Candidates will have to score 33% to qualify this paper.

Both are objective types and will be of 2 hours each.

Hope this answers your query!