India Year Book is a rich repository of the govt. schemes and other stuff. It has been seen that UPSC picks questions from India Year Book many times. But since reading 800-1000 pages document for this is not advisable. For this, I have prepared the summary which you can do within 2-3 hours in single reading.
All the best
Neelesh Kumar Singh
AIR 442 UPSC CSE 2021