Steps to Permanently Deleting Your Facebook Account
Important :Take a backup of your Facebook data before deleting the account, it may be useful in future.
1. At first login to your Facebook account.
2. Now go to Facebook permanent account deletion page and click on Delete My Account
3. Now when it pops up follow the steps such as entering your password and fill out a captcha code
After submitting the account deletion process successfully you will get an email from Facebook saying “Your account will be deleted in 14 days” For 14 days after you delete your account, Facebook retains your data in case you wish to reverse your decision. If you don’t log in to Facebook for 14 days, your account will be permanently deleted.
E-Mail Method
You can email at private@facebook.com from your registered email id and request them to delete your account.