I know there are already lots of guides available for rooting XPERIA C including one from myself but
video tutorials are always much much better than the writtten ones much because the user can see the complete process instead of
reading it and it also avoids confusion while doing something messy.
So I have made a video for Rooting and Unrooting Our device.
Framaroot.apk has been attached to this post.
Please press the thanks button if this worked for you..