This book contains Grammar class notes of Aman Sir who has been teaching English for competitive exams for the last 10 years. These notes contain all the concepts taught in the classes with detailed explanations. These notes are beneficial for all the students who are preparing for competitive exams like SSC, BANK, CDS, NDA, DSSSB etc. Explanation provided in these notes is in Hinglish language so that students from all states of India can understand them easily.