This document provides information about 4 Olympiads and competitive exams: IMO, NSO, NTSE, and Olympiads. [1] IMO is an international mathematics competition for high school students held annually. [2] NSO is a national science Olympiad that encourages learning subjects like math, science, and computer science. [3] NTSE is a national exam for class 8 students to identify talented students eligible for scholarships for education.