how do i get the groups which i have joined How can i display to my site users after joining into one group, need to display my Joined groups. suppose one person send invitation to his friend and he has joined in to his group after click link. then he has to see in his friend group he has joined using Views.

Like: 
      My Joined Groups
      XXXXXXGroup

Thanks
There is a view that comes with OG 7.x-1.x (I'm using 7.x-1.4) that displays all of the groups subscribed to. If you have views running, you could  simply append /user-groups to your url and you should see it. After that, you can go into the view and modify it to meet your specific needs (e.g., make a block or whatever).