Difficult to get the comprehensive RR for WBCS (Exe.) Officers immediately. However, some aspects of the RR can be accessed from the following:
WBCS (Exe) Seniority_Rules.pdf
Rules regulating probation and training of WBCS (Exe.) officers: https://wbxpress.com/west-bengal-services-training-examination-rules/
As I have been informed the transfer policy of WBCS (Exe.) is effective specially at Block Level.