timezone & itune problem in iOS6

I am having timezone & itune problem in iOS6 in ipad3.

I earlier posted that when opening itune it's showing only a white screen.

Then i got some reply's to chage year date to next year(2012) and then change it back.Then open itune

or logout and login of itune a/c.

But both ways did'nt work for me.But now atleast it showing(cannot connect to itune)

But i notice another problem that when i change my timezone to auto,it goes on serching and can't get fix on timezone as live in india(delhi).I don't think that should be a problem as i also have ipod which is working fine.

May be both of this problem are related?

can anyone help me in this or facing same problem ?