hi,
see to crack in upsc civil service exam it is not necessary to study in du, you may search in past years results and may have seen that candidates from colleges or universities has cracked this exam, what is most important is to make strategies, follow the exam syllabus, make necessary notes and practice regularly. to become eligible for civil service candidates with a graduation degree from any area can apply. since it is one of the toughest exam in india , so you need to start preparation early as possible. see Delhi university is one of the prominent university, by studying there you can gain knowledge from faculty, seniors, but it is not that if you can not get admission in du you can not crack civil service.
I hope you may understand. best of luck for your future.
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