Optional subject: choose with intent
Overlap with GS, interest, coaching access, and past trends — a practical checklist before you lock your optional.
Optional marks can decide your final rank. Choosing late — or switching mid-year — costs months. Decide with a checklist, then commit.
- •Prelims Focus: Institutional mandate, member countries, observer status guidelines, and strategic polar agreements.
- •Mains Focus: GS Paper 2 (Bilateral, regional and global groupings) & GS Paper 3 (Climate and energy security).
Interest matters because you will live with the subject for a long time. Overlap with GS (Sociology, Geography, Literature, etc.) can save revision time, but overlap alone is not enough if you dislike the syllabus.
Check resource availability: standard books, previous year questions, and whether you can get evaluation. Scoring trends change; treat them as one input, not the only one.
If you are a working professional, prefer an optional with clearer notes and fewer sprawling theories — unless your background already gives you an edge.
Once chosen, protect optional hours every week. GS and current affairs will always feel urgent; optional consistency is what compounds.
