If you are a beginner, PMF IAS is great for concepts. But for answer writing and interlinking , Neetu Singh is demonstrably better .
– Neetu Singh’s full “Geography Optional notes” (compiled classroom notes or paid study material) are copyrighted . Sharing or requesting unauthorized PDF copies violates intellectual property laws and this platform’s policies. neetu singh geography optional notes pdf better
For extreme depth in Geomorphology (like Slope Development theories), you may refer to Strahler once. But for GS Mains and Optional Paper I & II, her PDF is self-sufficient. If you are a beginner, PMF IAS is great for concepts