GS 3: S&T

6 minutes read, all points covered
You owe him BUT do you know him?
Things you need to know (3 minutes read)
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Compiled all articles from IE and TH (and little more)
GS3 SnT Notes
GS3 Notes | SnT
What, how and Dont's for UPSC Mains
Govt efforts documented here
SnT Notes for UPSC
Relevant notes for UPSC
Compilation of notes!