did you mean the earpiece? if you didn't hear anything, then try restart the phone, if the problem still exist, it might be the hardware problem, sent your device to asus service center. Maybe the mods will suggest you to try reset factory before told you to sent your device to service center.
Yes but the problem is we are lockdown due to corona virus and I am not able to work from home because of the issue Kindly can you advise any update or something that might work