According to some of my friends studying in Rajiv Gandhi University of Health Sciences (RGUHS) Karnataka, here are the books he mentioned would be important.
The question bank by the author is Singhi Yatiraj is the best option when it comes to pursuing a question bank.
The book is a well-framed set of previous year question papers and follows the RS pattern. It can be referred by any student of MBBS for studying their course effectively.
The best part is that you can purchase it online.