The document summarizes an interview with Pratishtha Mamgain, who ranked 50th in the UPSC civil services exam in 2017 in her first attempt. Some key points from her interview:

- She focused on repeated revisions as inadequate revision is a common mistake. She made detailed notes for difficult topics. 

- For the prelims, she relied on authoritative books and revised thoroughly. She used online sources selectively for clarification but not as a primary source. 

- She advises balancing risk-averse and risk-taking approaches in the prelims. Mock tests help understand the optimal number of questions to attempt. 

- All topics should be given equal importance rather than relying on past trends to

(Topper's Interview) Pratishtha Mamgain (Rank-50/UPSC-2017) 1st Attempt, Political Science, ST Stephen's Delhi PDF

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