I definitely think you should expand your vocabulary by learning new words from various sources like news, social media posts, youtube videos, or by subscribing to chatbots which send a new word a day like https://m.me/englishvocabularyindia .  You can also subscribe to websites like https://vocabularytoday.com to learn new words and test your vocabulary skills.

Hello Piyush Sinha!

For vocabulary I will suggest extensive reading. you can also refer to Word Power Made Easy by Normal Lewis and subscribe to sites like Find out how strong your vocabulary is and learn new words at Vocabulary.com.

For Grammar : Strengthen your basic grammar knowledge from Wren and Martin or any books you find comfortable.For RC : Read more. And solve questions as much as you can from materials.Lastly for other questions like cloze test, jumble passages, you can practice from coaching materials and previous year questions.

For logical reasoning these are the topics:

• Syllogisms
• Assumptions/Conclusions/Arguments/Actions
• Logical sequences
• Blood Relations
• Number test
• Directions
• Coding-Decoding
• Ranking
• Verbal Reasoning
• Arrangements
• Calendar

All the best! Thankyou