How to know if someone has blocked you on Gtalk .

So friends here is the solution to know who has blocked u on Gtalk.
For this you need to have PIDGIN and configure it properly. Pidgin is a third party tool, available for free. You can use all your messenger accounts at once using this software. You can talk to your friends using AIM, ICQ, Jabber/XMPP, MSN Messenger, Yahoo!, Google Talk, Bonjour, Gadu-Gadu, IRC, Novell GroupWise Messenger, QQ, Lotus Sametime, SILC, SIMPLE, MySpaceIM, Zephyr etc. Folow the steps below:

Download Pidgin.
Go To Accounts –> Manage –> Add.
It will open a new window Add Accounts.
From the drop down box choose XMPP as the Protocol.
In case of Screen name enter your Gmail Id (e.g. - crypto36).
Type gmail.com as the Domain/Server.
In Resource Field enter Home.
Type your Gmail Password in the Password Field.
Choose any Nickname (e.g. - crypto) as Local alias.
And you are now done with Pidgin settings.

Now how to see who has blocked u on Gtalk. Follow the below steps :

Sign in to GTalk on PIDGIN with your details
Go to Buddies –> Show Offline Buddies
Right click on that selected contact, and click on Get Info.
Now here is the trick. Clicking on Get Info will show the brief profile of the person. But if the person has blocked you on GTalk, you won’t be able to see his/her full profile. You can’t even see his/her profile name.

Source: Internet