binod,

your university should have people who notarize duplicate, ie, attest duplicates when you present the original in front of them. these people are called notary public. just ask in your dept and they should be able to direct you towards these notary people. every univ has at least 2-3 of these people, so worry not. and oh, these people (inside college) notarize your papers for free.

in case your school has none of these, just google for notary public in your area and you'll see a long list. these private notary guys charge about 5-15 bucks for notarizing all your paper, depending upon the no. of papers.

cheers