📚 TEXTBOOK DEPTH — Line-by-Line Deep Dives
These are the full-depth notes: every sub-topic as its own heading, explained line by line, at the level the modern Prelims ("how many statements are correct") and GS Mains actually demand. They are the first-reading depth companion to the concise Subject Notes (which are your revision layer).
How to use the two layers together: read the Deep Dive once thoroughly to build understanding → then revise repeatedly from the shorter Subject Note → test with PYQs. Depth first, then speed.
Available deep dives
| Subject | Deep dive | Revision note |
|---|---|---|
| Polity & Governance | Polity — Textbook Depth | Polity Notes |
| History | History — Textbook Depth | History Notes |
| Geography | Geography — Textbook Depth | Geography Notes |
| Economy | Economy — Textbook Depth | Economy Notes |
| Environment | Environment — Textbook Depth | Environment Notes |
| Science & Technology | S&T — Textbook Depth | S&T Notes |
| Art & Culture | Art & Culture — Textbook Depth | Art & Culture Notes |
| CSAT (Maths + Reasoning) | CSAT — Textbook Depth (formulas & techniques) | CSAT Maths · CSAT Reasoning |
Every examinable subject now has a full deep dive — the six GS subjects, Art & Culture, and CSAT. (English & Hindi are qualifying language papers — their notes + practice are the right format; there is no "textbook-depth" layer to add.)