This doesn't sound like a ConfigMgr related question...
To point you in the right direction, simply use your favorite search engine and search for something like "recover files after format". That should give you plenty information of the possibilities.
Hi Aabhas,
You may not able to recover whatever you've lost as the stored data has already been formatted multiple times. I'm afraid that recovery programs won't work either since the files has been overwritten.
You may give it a try by using few recovery programs like Stellar Phoenix or similar and see if you would able to scan and recover the formatted files.
Good luck!!
- Edited by ajms1989 21 hours 16 minutes ago