@ Mr. Pal, You are absolutely right. It should be implemented for teachers also. Because, a teacher may have some urgent private work which does not require a full day’s Casual leave.
@ Som, For West Bengal Govt. Employees, this can be availed, there should not be any problem. Because, it is absolutely legal as per WBSR (Appendix 10). A Half day Casual Leave may be availed by an employee either in forenoon session or in afternoon session. The dividing line is 1:45 PM, however in offices which follow different office hours the dividing line should suitably be adjusted by the respective Head of Office.
Note: Half CL can not be taken to adjust late arrival or early departure. It can only be taken for some urgent private affairs.