The 4th Edition of the book "A guide to Mathematics Olympiad for RMO & INMO with 14 Years Solved Papers" has been written with a flavour to guide an aspirant from Pre-RMO to INMO. • This new edition is now empowered with the 2020-21 solved papers of IOQM (Indian Olympiad Qualifier Mathematics held for the 1st time) & INMO. • The book now includes 13 Years Solved Papers 2008-16 included Chapter-wise and 2017-2020 provided separately. • The book provides lucidly written theory along with a number of well discussed solved examples. • The unique part of the book is the upgradation it provides from Pre-RMO to RMO to INMO. • The theory is followed by 4 levels of exercises - Pre-RMO; RMO; INMO & Previous Year Solved Questions of RMO & INMO. • The detailed solution of each & every question has been provided at the end of the chapter. • The recent solved papers of Pre-RMO, RMO & INMO for the years 2017-18, 2018-19, 2019-20 & 2020-21 (IOQM) have been provided separately for the students to understand the pattern, trend & expectations of the 3 exams. • This book is a One-Stop Solution for Learning, Practicing & Mastering the Olympiad Syllabus.