The UPSC Civil Services Examination (CSE) is a highly prestigious and challenging exam in India, with only a few out of lakhs of aspirants achieving success each year. Anudeep Durishetty holds the record for the highest score ever, achieving 1126 out of 2025 marks in the 2017 exam. Key strategies for success include comprehensive preparation, effective note-taking, strong answer writing skills, and performance in the personality test.