Is there any block in MIT which works for an android phone get into silent mode? Please help.
Nothing built-in would support this. You should take a look at the extension list maintained by @Taifun for a potential way to do this. https://puravidaapps.com/extensions.php. Nothing immediately jumps out to me though.
the paid version of the settings extension ofers the InterruptionFilter method to toggle between ALARMS to enable the Do not Disturb mode (but alarms still will sound) and ALL to disable the Do not Disturb mode. (NONE and PRIORITY also is available)
Thank you sir.
Maybe this could help you?