English Grammar Test And Book is a free app developed by LalRajiv. It is an exceptional way to learn and prepare your English grammar skills from anywhere, anytime. The app covers a wide range of topics, including Verb, Tense, Passive Voice, Narration, Question Tag, Subject Verb Agreement, Conditional Sentence, Verb (Advance), Noun, Pronoun, Adjective, Conjunction, Article, Preposition, Adverb, Words Often Confused and Misused, Vocabularies, Synonyms, Antonyms, One Word Substitution, Idioms & Phrases.

The app comes with a user-friendly interface, and every topic is explained in detail, making it easy for the user to understand. The app also includes practice exercises, where you can answer grammar questions and get scores. The app will be updated with new content and tests regularly, helping you stay on top of your grammar knowledge. The app is perfect for anyone who wants to improve their English grammar skills, and the best part is that it's completely free!