In 2011, UPSC introduced a significant change by adopting the preliminary examination pattern, which included two objective-type papers instead of one. This change aimed to streamline the assessment process, allowing candidates to demonstrate their grasp of a broader syllabus while ensuring a more structured evaluation of general studies. Moreover, the 2011 pattern included negative marking for erroneous answers, emphasizing the importance of accuracy in answering questions. Such modifications intend to enhance the quality of selections and encourage more comprehensive study habits among aspirants.