| | Best For | Limitation | |------------|--------------|----------------| | Ministry of External Affairs (MEA) – “India’s Bilateral Briefs” (free) | Authentic, official data | Too detailed, not exam-oriented | | Vision IAS IR PDF (paid – via test series) | PYQ linkage, concise format | Needs annual update | | Insights on India – Secure Synopsis (free compilation) | Mains answer structure | Not a standalone note | | PW OnlyIAS – IR booklet (paid) | Maps + diagrams | Shallow on contemporary issues | | Self-made from The Hindu’s “International” page (free) | Most current | Time-consuming |