Subhankar Bala IAS UPSC CSE Mains Booklist Specifically for mains GS1 : Indian culture : Vision notes , Nitin Singhania ( for some topics only) Modern history : spectrums Post independence : Spectrums and India after Gandhi (May read) World history : Vision notes Society : NCERT and vision notes Effect of globalization : vision notes Physical geography : NCERT , and current affairs Natural resources : Mrunal sir’s website Geophysical phenomena : NCERT and Rajtanil madam’s lecture GS2 : Polity topics : Laxmikanth , current affairs , mains 365 Development process , NGO , SHG : Vision noets Welfare scheme , poverty etc : Mrunal sirs note Governance : Vision notes , 2nd ARC International relation : internet , mains 365 International institutions : internet , mains 365 GS3 : Economy : Mrunal Budgeting : Mrunal Crops, cropping pattern : Internet, NCERT PDS : vision notes Food processing : vision notes Land reform : vision notes Infrastructures : Mrunal Investment models : Mr...