Having a diverse knowledge base is crucial for UPSC examinations as it equips candidates with the flexibility to address varied questions and topics. Exposure to different subjects like politics, economics, and sociology fosters critical thinking and enhances analytical skills. This multidimensional understanding enables aspirants to draw connections between issues, leading to well-rounded responses in examinations and interviews. Furthermore, a wide-ranging knowledge base prepares candidates to engage with diverse communities and navigate complex governance challenges more effectively.