Question: If I'm pursuing studies at/in the XYZ department, what is the correct preposition for the following sentence?
I'm a student [at / in / from / of] the XYZ department
There are related questions here on ELL, but they are mostly about whether I'm studying "at" a
n university, not a department from a n university. Googling I could find all of these prepositions being used by students in leading English speaking universities.