Effective study habits for candidates preparing for competitive exams like UPSC include goal-setting, active learning, and self-assessment. Establishing clear, achievable study goals can provide direction and motivation. Employing active learning techniques, such as summarizing information and teaching concepts to others, can improve retention and understanding. Regular self-assessment through mock tests and past papers helps identify strong and weak areas. Incorporating variety in study methods, such as visual aids, group discussions, and online resources, can keep engagement levels high, promoting a well-rounded approach to preparation.