Analytical writing is crucial in the UPSC essay paper as it demonstrates a candidate's ability to critically evaluate issues and present coherent arguments. It allows candidates to articulate their thoughts with clarity and depth, showcasing their understanding of complex topics. Strong analytical skills enable candidates to break down multifaceted issues, thus leading to more nuanced essays. This aspect is not just about writing fluency but also about constructing a logical flow that engages the reader. Ultimately, effective analytical writing contributes to a higher score by making their essays more persuasive and insightful.