Welcome to the Forum @Dushyant_Singh and thank you for sharing your feedback with us!
We already have a thread on this topic in the Forum, so I have gone ahead and merged this post with the main thread to consolidate feedback and votes. I hope that’s OK.
In the meantime If you are using the Premium version I would recommend you to have a look into these articles that might be helpful:
I also leave here the guide article that explains how to restore deleted items: https://asana.com/guide/help/tasks/actions#gl-undelete-task
I hope it helps! Have a great Thursday!