over dutytime for engineering gatekeeper

Submitted by PRAVEEN PS on Thu, 25/06/2015 - 17:52

I am working as a gatekeeper in trivandrum division in southern railway,my overall duty time is 72hours/week where as gatekeepers in traffic department which is 60hours/week,both the enng and traffic staff are doing same duty but different duty time why it happenes? Why didn't our duty time over compared to other staff doing same duty? Give repley sir