This book is designed to acquaint engineering aspirants with the new pattern of Joint Entrance Examination (JEE) Main conducted now by NTA twice a year in computer-based mode. The book comprises all 16 papers conducted in 2019 January and April sessions, along with their detailed solutions. The chapter-wise distribution of questions for all subjects is provided at the beginning of the book, for all the tests conducted. In addition, the analysis of number of questions falling under the three categories of Bloom's cognitive learning skills (learning based, application based & skill based) area also provided. Both these analyses will help students develop greater focus in their preparation and develop comfort level with the examination.