Hello everyone!
This is Ritika Verma
I have been fortunate enough to secure AIR 25 in UPSC CSE 2023 this year. The purpose of this channel is to share the approaches that worked for me throughout this preparation. These are by no means absolute strategies hence, should be taken with a pinch of salt!

This was my 4th attempt, 4th mains, and 2nd Personality Test.

Things that I think worked for me this year (apart from luck):
GS3- 70 (2022) to 104 (2023)
Mathematics- 241 (2022) to 289 (2023)

2023 marksheet

2022 marksheet.

2021 marksheet

2020 marksheet

Please refer this for overall prelims and maths strategy!

For mathematics I took help from-
1. IMS Delhi- foundation level coaching, reading material, test series.
2. Mathocrat- online videos for physics part, test series in 2023 attempt (but was not able to give every test)
3. Kanishk Kataria sir's notes- updated it with questions which I felt were important/difficult for me.
4. Standard books- M.D.Raisinghania for ODE and PDE.
Malik and Arora for real analysis and calculus. Krishna series for physics part (some important questions are already part of ims notes, so no need to do it separately)
5. Separate notebook for PYQs. Did them multiple times.
6. Pourush Sood sir's youtube videos for how to use the calculator!

Please refer for prelims and mains strategy!