Maths Concept King (4th Edition, English Medium, 2025 Updated) - The Maths Concept King – Formula Book by Gagan Pratap Sir is an all-in-one mathematics companion for competitive exam aspirants. Specially designed for SSC-CGL, CHSL, CPO, MTS, CDS, GD, Railway, Selection Post, and other government exams, this 4th Edition (2025 Updated) covers traditional concepts + latest exam pattern questions to keep students fully prepared. This updated edition not only strengthens conceptual clarity but also ensures students are well-versed with the newest question formats of 2025 exams. It is truly a Formula Bible + Exam Guide, making it an essential choice for every aspirant.