Hey Chetan,
I do care about the same title, but it's just a matter of getting placeholder value and set this to "title" attribute.
For ex:
$("input, textarea").each(function(){
$(this).attr("title", $(this).attr('placeholder'));
});
And the reason why your answer is not suitable for my condition is, if I go to WYSIWYG editor in "Forms -> Layout -> HTML Source", I could only see my code like this "$$label:TextBoxControl$$$$input:TextBoxControl$$", there is no option to add title attribute to "input".
Finally, I got ended in wrapping input field with label, so I have bypassed these both answers.
Anyways, thanks for your support team!