To reduce anxiety on exam day for UPSC, candidates can adopt several measures. Effective preparation ahead of time can build confidence, while adequate rest the night before ensures mental clarity. Simple techniques like deep breathing, mindfulness exercises, or visualization can help calm nerves. On the day itself, arriving early to the exam venue can alleviate stress related to time constraints. Lastly, maintaining a positive outlook and reminding oneself of prior preparation can further reduce anxiety and improve focus.