In an early post, I have mentioned about AICSCC library, which has many resources to be utilized. All books required to clear UPSC exam is available here. But the arrangement of the books was given very less importance. 2017-18 Batch students worked for 4 days by spending more than 80 man-days to arrange the library for its fast and easy access.
Here I have attached the AICSCC library layout so that anyone can use it easily. You can use the following link to view the AICSCC library layout directly.
Credits: AICSCC 2017-18 Batch students.