if you are married, marriage certificate is must, batter to attest it with foreign ministry, and if you have job , attach your employment contract, Job offer latter etc.., bank statement that shows your salary transfer is a must and for last 4 months, also shows other transaction as well, Travelers photos, applications forms, provide family information as required, provide your past travel history, if you have no travel history, don't worry, provide a purpose of travel document as well, and if you have property in your name add that, and add as many as proofs you have that will convince visa officer you will come back to your home country...