Preparing for the UPSC Civil Services Examination 2026 is a dream for lakhs of aspirants. While Prelims and GS papers get most of the attention, the Optional Subject in IAS 2026 Mains is a true game-changer. Choosing the right optional and preparing it strategically can make the difference between just clearing Mains and getting a Top 50 rank. https://aptiplus.in/blogs/upsc-cse-2026-optional-subject-preparation/