Sajhabasi haru:

Could you please tell me what documents do I need to send to my parents so that they can come here for my graduation. Also, it would be wonderful if you can tell me what documents do they need in Nepal.

Thanks.

In my case, I just sent them the letter of invitation. I made three seperate letters for each individual members of my family. I guess you can make a single letter too. For, them they had to make same docs. as we made for our F1, except I-20, they had to put invitation letter. Or you can ask your parents to catch some consultancy, they will make the docs.

Go to the international office and tell them you want to invite your parents for your graduation. They will make invitation letter for your parents. That's all you have to send. More documents will have to prepare on the other side though,like bank statement, source of income. Along with invitation letter your visa, college ID will be helpful, not mandatory though. Good luck.

good luck

The following link has some information-
http://path2usa.com/immigration/visitorvisa/sponsor_documents.htm