Query related to Online form

Hi every1......

Just one doubt........

Iv filled up the CA Final form online..............

I have finished my articles in july 2010 and have recived a letter from institute stating tht i hv completed articles............

Now for attestation do i have to get my principal signature on the form or can i get signature of any CA.....

Im asking this because the online form print out merely mentioned the "Principals signature & membership" and not "Principals/Any other members signature" like the normal form.............

Please  respond...............

Thanks in advance.....................