Both offer free or paid PDFs that are extremely CDS-specific. Their notes include map work, one-liners, and monthly current geography updates (e.g., earthquakes in Turkey, cyclone Mocha).
When looking for or creating PDF notes, these authoritative sources are highly recommended: Most Asked Geography Topics in UPSC CDS Exam 2026 cds geography notes pdf
Here’s a mockup of what a high-quality page looks like: Both offer free or paid PDFs that are extremely CDS-specific