Hello Anjali,
As I can see you require UPSC previous question paper but you have not given any specific services paper so I will be providing you the official link of the question papers below you can download it as per your convenience.
Question papers link :- https://www.upsc.gov.in/examinations/previous-question-papers
I hope this information will be useful for you.
If you any have query please don't hesitate to drop message in the comment section below.
All the best!
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