Hi @Anirudh_saraf ,

for this you will be having some certain conditions like  Item(name)/ Short-description and assignment group and if you are having these then you can write a code for this via BR after putting when to run  filter conditions.

or if you are using flow designer then use the Send Email action  for triggering the notification after putting wait for a condition if that particular task's state is closed.

Thank you!

Vishakha Yadav