Subhrajit Mukherjee 27th Nov, 2021

Lucent General English is a very good book for the beginners if you are starting your preparation. But with time you need to do some advanced books such as:

1. Objective General English by SP BAKSHI
2. Wren and martin english grammar book
3. Word Power made easy by norman lewis
4. A mirror of common error by Ashok Kr Singh and English is easy by BSC publication.

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https://competition.careers360.com/

I hope this answer helps. All the very best for your future endeavors!