how to remove remove blocked urls in google webmaster tools ?

Hello friends..

how to remove remove blocked urls in google webmaster tools ?

 

use disvow tools

 

Have you blocked URLs using the robot.txt? You can simply delete those URLs from the robot.txt file and unblock those URLs. Default wordpress robot.txt file loks something like this one-

If more URLs are there simply delete those URLs.

 

i have deleted it. but not update. how much take time for it

 

Wait for 24-48 hrs for the index to refresh. Don't hurry! You are doing it alright.

 

but its already an week, my 27000 links are blocked.

 

Can you please tell me that how do I know what URL is Blocked of my blog?
and also tell me if i find it out than what to do or how to remove ?
reply as soon as possible