Hi, I am a student in canada and on my passport I just have one name my given name. I don't have any last name. So I am facing problems everywhere. I can't understand how I can change it or who can help me. What would be the procedure to change it. Please suggest me some thing.

It is strange how you got indian passport without last name. check with indian consulate people how to add last name in your passport.

Most of names in Indian passports are given names only which is a combination of first / middle and family or last name. Only since recently Indian consulate in Toronto is asking for first (given) and last (family) name in passports and making them accordingly.

You should apply for a new passport with given and family name. They will make it. Best is to visit VFS office and talk to them. They might do in the same passport also. but I doubt.