Get all the documents:
a) Employment letter
b) Bank statement
c) Your passport copy/ID card
d) Please note that a form need to be filled in which you can download from MOI website

Get the following documents of the visitor:
a) Clear passport copy

Once it is accepted at the Immigration Dept., they will issue a Receipt and you can check online the visa status. If the visa is approved, go to the Immigration Dept. and pay the fees to get your visa.