This new 12th edition of MEGA Study Guide for NTSE 2021 Class 10 is empowered with the inclusion of 2020 Stage I questions of the different states. The book is based on the syllabus of Class 8, 9 & 10 as prescribed by NCERT. There are 27 chapters in the Mental Ability Section (MAT). The Scholastic Aptitude section (SAT) has been divided into 8 parts - Physics, Chemistry, Biology, Mathematics, History, Geography, Civics and Economics. The book provides past questions of last 10 years' of NTSE Stage 1 (2012-2020) & Stage 2 (2012-2019), JSTSE papers divided chapter-wise. The book provides sufficient pointwise theory, solved examples followed by Fully Solved exercises in 2 levels - State/ UT level & National level. Maps, Diagrams and Tables to stimulate the thinking ability of the student. The book covers new variety of questions - Passage Based, Assertion-Reason, Matching, Definition based, Statement based, Feature Based, Diagram Based and Integer Answer Questions.