Buy the Pendrive course notes or PDF set directly from Drishti. The cost is negligible compared to the risk of studying outdated content. 3. Syllabus Mapping (What the Notes Should Cover) Verify that your PDF covers the full UPSC PA syllabus (Papers I & II). Cross-check the Drishti index against this:
| Source | Method | Cost | | :--- | :--- | :--- | | | Go to drishtiias.com → Shop → Optional Subjects → Public Administration. You will buy a downloadable PDF or pendrive. | Paid (₹2,000-5,000) | | Drishti IAS App | Download the app (Android/iOS) → e-Books section. Purchase and download directly. | Paid | | Telegram Channels | Search "Drishti IAS Public Administration" – many unofficial channels share older editions for free. Risk: Incomplete/old syllabus. | Free (but unofficial) | | Physical Copy | Buy from a Rajendra Nagar (Delhi) bookstore. They sometimes include a free PDF link inside. | Paid |
