command for recently modified files - "find" command not working

I have three files a.txt , b.txt , c.txt in a directory called my_dir1 .These files were created before two or three months . I have a tar file called my_tar1.tar which contains three files a.txt , b.txt , d.txt . Somebody untarred the my_tar1.tar into my_dir1 directory. So existing two files were replaced .Untarred files shows the date when the files were tarred . A new file called d.txt is there in my_dir1 . The file d.txt also shows the date when it was tarred. 'find' command is not helping to list out the recently modified files. Because files contains tarred dates. is there any command , which can list the recently modified files irrespective of dates ?

Before untarring :

total 0
-rwxrwxrwx   1 user1 pcfd         100 Feb 13 10:29 a.txt
-rwxrwxrwx   1 user1 pcfd         150 Feb 13 10:29 b.txt
-rwxrwxrwx   1 user1 pcfd         117 Feb 13 10:29 c.txt

After untarring my_tar1.tar

total 0
-rwxrwxrwx   1 user1 pcfd         120 Jan 13 10:29 a.txt
-rwxrwxrwx   1 user1 pcfd         130 Jan 13 10:29 b.txt
-rwxrwxrwx   1 user1 pcfd         117 Feb 13 10:29 c.txt
-rwxrwxrwx   1 user1 pcfd         110 Jan 13 10:29 d.txt

Expected Resulut:

-rwxrwxrwx   1 user1 pcfd         120 Jan 13 10:29 a.txt
-rwxrwxrwx   1 user1 pcfd         130 Jan 13 10:29 b.txt
-rwxrwxrwx   1 user1 pcfd         110 Jan 13 10:29 d.txt

You can use the -ctime option of the find command. The ctime refers to the moment, the inode of a file was changed.

find my_dir1 -type f -ctime -10