Popular websites and platforms that assist UPSC aspirants in preparation include Unacademy, BYJU's, and Insights on India. These platforms offer comprehensive courses, study materials, and mock tests tailored specifically for the UPSC exam. They also provide access to experienced educators and mentors who guide aspirants through the preparation process. Furthermore, social media groups and forums like Reddit and Telegram channels create communities for sharing resources and experiences. Access to a variety of materials and support networks plays a significant role in enhancing candidates’ preparation strategies.