got call from service center at 10 am, phone no longer creating booting problem and come to nehru place which takes 1.5 hrs to reach from my place one side, so going and coming back is 3hrs. i told them to check and keep software updated.
i was about to leave so i called them up, just to know that they have just started updating the software on their slow net connection and will take 1.5hrs, now its postponed for tomorrow, would have totally wasted the time if phone would have started rebooting again once i updated reaching home.