Screen (frequently) locking automatically while using phone

I dont know why but since last couple of months, my phone screen gets locked automatucally while using it. Though i have set my autolock to 10 minutes of inactivity, this still happens. And this happens only when i am using internet through mobile data or wifi. After the screen gets locked, i unlock it and while im using it, again it gets locked and again i have to unlock it and this repeats for 4 -5 times then it stops for that instance and happens again after few minutes. Plz help..

Hey Tushar,

Your query has been already answered check here :
http://www.asus.com/zentalk/in/thread-83889-1-1.html

Make sure you don't create multiple Thread for similar issue.