βHis simple, UPSC-oriented problem-solving methods, focus on question selection and time management helped me score 100 marks in CSAT by revising only his notes and classes.β
M. Rajeshwari Suve
UPSC CSE 2025 Β· AIR 2


Equip yourself with the right strategies, conceptual clarity, and confidence to ace the CSAT with AYYAPPAN SIRβS Complete Guide To UPSC CSAT. You won't just prepare β youβll master the exam!

βAyyappan sir's first CSAT book unveiled by Prof. D. P. Agrawal, Former Chairman, Union Public Service Commission (UPSC).
A single story, in their own words β and on video.
βHis simple, UPSC-oriented problem-solving methods, focus on question selection and time management helped me score 100 marks in CSAT by revising only his notes and classes.β

M. Rajeshwari Suve
UPSC CSE 2025 Β· AIR 2
Real results from aspirants who cleared CSAT with our guidance.
βHis simple, UPSC-oriented problem-solving methods, focus on question selection and time management helped me score 100 marks in CSAT by revising only his notes and classes.β
M. Rajeshwari Suve
UPSC CSE 2025 Β· AIR 2
βHis practical strategies completely transformed my approach to CSAT β focus on options, choose the right questions, skip time-consuming ones, and master Previous Year Questions.β
A. Agnes Meritta Steffy
UPSC CSE 2025 Β· AIR 507
βI improved my CSAT score from 55 marks in 2023 to 112 marks in the 2025 attempt. Ayyappan Sir's systematic approach and topic-wise segregation of questions helped a lot.β
P. Kaviya
UPSC IFoS 2025 Β· AIR 64
Strategy sessions, shortcuts, and CSAT walkthroughs from our YouTube channel.
Scan embedded QR codes for instant step-by-step video explanations by Ayyappan Sir.
Master proven shortcut formulas to solve tricky CSAT aptitude questions in seconds.
Granular breakdown of quant, reasoning, and comprehension for complete clarity.
Structured learning progression from zero-level basics to advanced strategies.
Exhaustive topic-wise compilation and detailed solutions spanning a decade.
Curated independent learning roadmap requiring no expensive coaching.