how are the 500 plus geography optional notes which are available in the shops? how are the notes in terms of print quality ? and what is the quality as compared to the actual classes?
and if any other trustable notes please suggest
Hii I was looking for some notes on History and Political and and found this sitewww.beegghead.com relatevliy new but the content is very good. they also have dedicated section for Geology Optional UPSC. And think you should try these they are free and better thank others.
https://www.beegghead.com/free-study-material/geology-optional-study-material/