made mistake in gre registration can i change now

sir,Hellow,sir. My name is Prudhvi i had registered for GRE. at registration i made mistake about my name. my original name is PRUDHVIKUMARREDDYPUPPALA but in registration i registered as PRUDHVIREDDYPUPPAL. is there problem with this mistake.could u change my register name.please sir how can i go forther about this issue…give me a quick replay. and also my first name is PRUDHVI, last name is PUPPALA middle name is KUMARREDDY.some body says according to the u.s rules they consider about only first name and last name,don’t concern abt middle name. now what i am do please give suggesion sir. if can possible to change register name what is the process tell me sir. iam waiting for ur quick replay sir.

No guarantees, but it seems you should take identification with you on the test day and ask them to please correct it there at the test center: