Many of the students have registered in CetlyLive with illegal usernames. The username that to be used in cetlylive should be like namebranchyear. i.e mithuncs13. Those who have already registerd with illegal names can change their username by the following way Login to your account Click on the profile Next click on Change username Change your username as per the above given way(ie namebranchyear) Click save changes and login...