Hello

Following  are the best books to go for while preparing for ssc chsl:

For English :

Objective general English by Sp bakshi.

Quick learning objective general English by vikas aggrawal and R.S aggrawal

Word power made easy by Norman Lewis.

For Mathematics

Fast track objective Artimatic by Rajesh verma

Quantitative ability Artimatic ability by kiran prakashan

Quantitative aptitude by R.S aggrawal

For General intelligence and Reasoning:

Analytics reasoning by M.k pandey

Verbal and non verbal reasoning by R.S aggrawal

For General Awareness;

General Knowledge by Lucent publications.

Manorma yearbook by mammen mathew and Philip Mathew.

You can also visit the following link to know the syllabus and paper pattern of the exam..

https://www.google.com/amp/s/competition.careers360.com/articles/best-books-to-prepare-for-ssc-chsl/amp

Feel free to ask...