Pan tan address change

RESPECTED SIR WE HAVE CHANGED OUR OFFICE OF LLP FROM ONE AREA TO OTHER AREA WITHIN SAME CITY . FOR ADDRESS CHANGE WE HAVE CHANGED OUR ADDRESS IN MCA RECORD AFTER GETTING REGISTRATION CERTIFICATE FOR OLD ADDRESS NOW WE HAVE NOT GOT NEW REGISTRATION CERTIFICATE FROM MCA SITE AS CHANGE IS WITHIN CITY. NOW WE WANT TO APPLY FOR CHANGE IN PAN CARD & TAN NO . WHAT DOCUMENT CAN BE GIVEN FOR PROOF OF ADDRESS CHANGE FOR PAN & TAN CHANGE CAN WE GIVE GST REGISTRATION CERTIFICATE AS PROOF FOR BOTH THE CHANGE ABOVE? PLEASE GUIDE