CadetCore NDA/NA 2026 Handbook for General Ability Test (GAT) & Mathematics (Set of 2 Books) is a compact and exam-focused preparation resource designed for aspirants preparing for the NDA/NA Examination 2026. The set provides complete syllabus coverage with crisp theory, pointwise revision notes, and concept-focused explanations for both GAT and Mathematics. With 2 full-length mock tests, these handbooks help aspirants revise quickly, strengthen fundamentals, and build confidence for the NDA exam.