HTC One not getting Android updates

Hey Guys,



I bought my phone a few months ago which came with Android 4.1. and my Cid is still 0



I've now shifted to India and haven't gotten any Andriod update and every time I check for software updates I get a 17mb software enhancement update regardless of how many times I install it.



Let me know if you guys have a solution I don't want to root my phone.





Thanks in advance