OK I keep in mind your remark about the password.
To change your language preferences : you go
here and must check the "save preferences" box. Then remove Urdu by clicking on the red icon and launch the search.
The language preferences is something different fro the "languages you can read" in your profile page. This language list is shown on your inbow message box, to inform a member who wish to send you a message, what languages you can understand.
Maybe I could add the possibility to edit the translation preferences in the profile page too, what do you think?