When you read a PDF of notes (rather than the original book), you force your brain to recall the concepts. Notes remove excess fluff, leaving only keywords, tables, and charts.
For a deeper dive or specialized study, you might also look for: Governance in India by M. Laxmikanth M Laxmikant Polity Notes Pdf
Most aspirants cannot read the full book more than twice. With good notes, you can revise the entire syllabus in 6–8 hours flat. When you read a PDF of notes (rather
Insights into Panchayati Raj and Municipalities. leaving only keywords