It was found that
@izrepliesbot is forwarding you the message when someone replies to you in a group where you are not available
The bot need not to be part of the group to work. Currently the bot works even after it is blocked and it can even initiate a chat with you without starting the bot.
Currently it's not possible to block the bot from forwarding you message from a specific group or disabling it completely.
This might be something related to a new feature which might popup in Telegram clients and they kept the bot for backward compatibility (Similar to
@Channel_Bot)
#Telegram #replies
โน๏ธ @KeralagramChannel