The UPSC mains examination offers candidates a choice of multiple language options. The languages include English, Hindi, and several regional languages, such as Bengali, Tamil, Telugu, Kannada, Malayalam, Odia, and others specified in the Eighth Schedule of the Constitution. Candidates can select one language for the qualifying papers, which are compulsory, and they can also write their remaining papers in the chosen language. This flexibility supports linguistic diversity and caters to candidates' preferences, ensuring a more accessible examination process.