"BCS Preliminary Bangla", "BCS Preliminary ENGLISH", "BCS Preliminary Bigyan-Projukti O Ganitik Jukti", "BCS Preliminary Bangladesh Affairs" & "BCS Preliminary International Affairs" are a guide book series for BCS Preliminary exam and other PSC & various MInistry conducted competitive job exams. These books have been published by "Panjeree Publications limited" in Bangladesh. These books are very good and every candidate who wants to grabe the said jobs surely should possess this guide series.
Anisur Rahman is one of the writers of these guide series.