Hello Uwais,

The gate preparation for the field of chemical engineering is great,

we have a detailed article on our website for the same, please go through this article,

https://www.careers360.com/chemical-engineering-course

and also, the books that you can use are:

https://engineering.careers360.com/download/ebooks/careers360-quick-guide-to-chemical-engineering

and if you have any more questions, do ask!