hello souvik keshri,

for BITSAT, english part needs more preparation than logical reasoning,since it's concept will be more easy and understandable.you need to solve it in time ,so you can prepare it again and again with previous year papers.

for english,the best way is read standard newspaper like hindu.that's all.

actually arihant is enough, apart from this you need to solve previous year papers.

all the best 

thank you!!

The topics will be covered from the sections English & Logical Reasoning:

English Proficiency

Grammar

Vocabulary

Reading Comprehension

Composition

Logical Reasoning

Verbal Reasoning

Non-verbal Reasoning

In order to prepare for these sections you can prefer the books:

BITSAT English Proficiency & Logical Reasoning by Disha Experts

The Pearson Complete Guide to the BITSAT (English) by One Learn Education

Wren and Martin

Good Luck!