Hi,
Thanks for the reply. Few months back it happened once or twice, i didn't think that was issue. That was the time I jailbroke my device.
2 days back I was trying to upgrade to IOS 6 but it gave me an error. So I restored into factory default, that's the time it started happening. I did went into DFU amd manually re installed it 3 times ( until Sat early morning). It was working fine from yesterday morning to noon and again went into restart loop mode . I just left it like that, and from today morning after charging it started working again.
So this is the issue history. I don't know if the loop will start again or not ? So far it's working but I am wondering what could be causing it ?