i qualified for psychology lecturer interview, although its date has not been announced yet, but still do i need to show NOC from my current department, if i got appointed on current job after giving lecturer test?

to make more clear, i am serving in special education department at BPS 16 since 6 july 2015, and my lecturer psychology test was in june, now that i qualified for interview than do i need departmental permission for that?

even if i apply for departmental permission certificate through proper channel i wont get it till ma interview that is expected to be in first week of September????