Hello nivedita bm,

For FMGE, passport is the primary form of identification, you must apply using your name exactly as it appears on your passport. If your passport does not have your surname on it and your other documents do, You might face issues during verification.

So, to avoid such problems, you can either prepare a notarized "one and the same person" affidavit linking both names, from your passport and your other documents, or update your passport with your surname to avoid any problems during your FMGE exams.

I hope this will help you.