Regarding the rooting of sony xperia m dual

[ganeshrk12]

Can i root the sony xperia m dual, after rooting the warrenty will be lapsed or not please tell me.

Also after rooting this phone can i get the move app to sd feauters or not, 

after rooting the phone data and deafult apps are keep as it is or not please inform

[Thommo]

This is a grey area as some will say yes and others no - If you unlock your bootloader then you may loose warranty however if you root without unlocking your bootloader then in my opinion your warranty should be fine if you are able to remove signs of rooting

Yes rooting will leave your device as stock but it will give you access to the root hence the name rooting