I had referred to Embibe for mock tests and Arihant BITSAT Guide for References for BITSAT Preparation, besides strengthening on my JEE Preparation. I ended with 319 in BITSAT 2019, and you may also successfully follow my reference.

For more information about BITSAT Preparation do follow the link below

https://engineering.careers360.com/articles/bitsat-preparation-tips/amp

For more information and BITSAT Study Material do follow the link below

https://learn.careers360.com/engineering/bitsat-preparation-material/