How to recover Old BackUp? I recently made a full backup of my iPhone 7 to my computer a day back. I was adding some new songs in Itunes then I connected the Phone to those songs.

Unfortunately as soon as Iphone connected to iTunes, it automatically made a full back-up of my phone, and I now can't see the previous back-up I made. Please tell me!

How to recover that Old BackUp.
iTunes usually just updates the previous backup as part of its incremental backup process. But you can look in the iTunes Preferences ->  Devices tab to see all of the backups iTunes sees to make sure:

https://support.apple.com/en-us/HT204215

To make extra sure that there's not a partial or broken backup that iTunes isn't seeing, you can also go look in the folder for the backups. Here's an article I wrote with instructions for getting to the iTunes backups folder on different OSes:

https://deciphertools.com/blog/where-are-iphone-backups/