Exam form attestation query - very very urgent

Dear All,

I wanted to know for my CA Final 2nd attempt can I get my Exam Form attested by any CA in practice or should it be from my principal only. My articleship completion date is 23rd Aug 2014.

I have one more friend whose articleship completion date is Sep 5th 2014. Should he also get his form attested for 2nd attempt by his Principal only or can it be from any CA in practice?

Guys really need your help on this.

Thanks

Mohit