I am writing continuously in Zentalk that I have done several tweets to @Asusindia official twitter handle and posted my device photos with Asus logo stuck and video indicating actual issue and also attached phone inspection *job-sheet* received form *Asus authorized service center* which specifies that phone is having Software problem and OS error after update, *Asus Logo Stuck*
Asus India official twitter handle taken the issue into consideration and forwarded to the concerned department followed by call and email from the concerned team with a written email confirmation that "your device is approved for swap by Asus HQ" and you are requested to submit your defective device at authorized service center.
Even-though my device is out of warranty it is informed you do not need to pay "single rupee" and you will get swap handset, this is clear that such crash happened due technical glitch in the FOTA update.
Timeline given for collecting swap handset is within 7-10 working days from the same authorized service center.