The by Raushan Anand and Bittu Jha are widely used for competitive exams like the Bihar Daroga (SI) , BPSC, SSC, and Railway. You can find these notes through the following digital and physical channels: Digital Access (PDFs)
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: Detailed coverage of British-era acts (1773–1947), the making of the Constitution, and its salient features. Gyan Bindu Polity notes The by Raushan Anand
If the exact Gyan Bindu PDF is unavailable, these are excellent substitutes: the making of the Constitution