Hello,

Yes, science is an important portion of general knowledge in UPSC CDS exam, but you don't need to worry regarding this, just go through NCERT science books from 9th to 12th standard, these are pretty easy to understand as well since the information is written in lucid and easy to understand language, if you find it difficult then ther are many YouTube channels which have covered these subjects you can go through that as well, other than this there is also history,polity, economics,geography, miscellaneous etc, and read newspaper on a daily basis such as The Hindu or The Indian Express, to cover the dynamic portion, read more details regarding this at https://www.google.com/amp/s/competition.careers360.com/articles/best-books-for-cds-exam/amp

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