Ieltc voaching query

i am running an ielts coaching center and fee collection is done through my bank account. i have opened a new branch in near town which is run by my wife.fee collection of that branch is done through her account.my question is that if i am taking gst registration can i show my wife bank account collection also in my gst...or..should i take new reg for that branch.??.pls reply thanks in advance..