Most exclusive links floating around contain the (2019) or even older. Since 2019, India has seen the dissolution of Jammu & Kashmir as a state, the implementation of the three new criminal laws (BNS, BNSS, BSA), and changes in the Ladakh administration. If you study from an old PDF, you will answer Prelims questions wrong.
Master Indian Polity by M. Laxmikanth: Your Ultimate Guide for UPSC Success indian polity by laxmikant pdf google drive exclusive
