If someone else is with you, you should have a return ticket. Both people must have a return ticket corresponding to their visa's expiration date; if they return after their visa has expired, they will be ineligible. You must then pay additional fees for visa updates depending on where you live and your visa type.
You must have a valid passport, bank statements from the previous six months, and at least two valid pictures. All of these should be scanned. Only documents scanned by the visa process system are eligible; if any are missing, the user should get them checked. After the documents have been checked, a special mark with a stamp is placed on each paper to indicate that the scanning process has been completed.
People suffering from any medical condition should have a proper doctor's prescription with which they are willing to travel in between medications. All eligibility conditions must be met if people who are medically unfit or unable to travel are advised not to travel. They should have a doctor's prescription if such travel is required due to an emergency.