Aspirants typically use a combination of these titles to cover the vast history syllabus: Swadesh Sabhyata O Biswa (Swadesh Sabhyata & Biswa)
Jiban Mukhopadhyay has authored several variations of his history texts. Depending on your focus, you might look for: Jiban Mukhopadhyay History Book PDF - Scribd Wbcs History Book Jiban Mukhopadhyay Pdf
While many aspirants seek a PDF version for quick reference, it is important to distinguish between official resources and third-party uploads. Aspirants typically use a combination of these titles