Dear All i lost my all blackberry contact But got backup before 1 week but whenever i restore my backup all my mail,sms, is restore but my contact is not restore so give me solutation

Did you back up your contacts when you made the backup from last week? You can only restore what you have backed up.

He is correct, you can just get the data that you have backed up. Did you do a full backup by any chance? Are you restoring the data using Blackberry Desktop Manager? There is another workaround for this situation and that is to extract the backup directly. Try using Blackberry Backup Extractor, your contacts should be recovered if they are in the backup. Simply import them back to your device via Google Sync