Both of you must to prepare
* single certificate from ur own country with stamp from district.
**ID Card in ur own country.
***Passport Copy.
****Photos 2 x 2 (2 pcs.)
*****Withness 2 persons & Rings....for both of you for sure...some embassy request for the letter from ur company also....
Note: any requirement its depent on ur embassy. Better call them for more details. Good Luck....