deleting gpg key from store

[oracle@Linux03 ~]$ gpg --list-keys
/home/oracle/.gnupg/pubring.gpg
-------------------------------
pub   2048R/17DC5B7A 2016-09-02
uid                  arvind (arvind gpg test) <arvind@gmail.com>
sub   2048R/5C9DA3C6 2016-09-02


[oracle@Linux03 ~]$ gpg --delete-keys arvind
gpg (GnuPG) 2.0.14; Copyright (C) 2009 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

gpg: there is a secret key for public key "arvind"!
gpg: use option "--delete-secret-keys" to delete it first.
[oracle@Linux03 ~]$ gpg --delete-secret-keys arvind
gpg (GnuPG) 2.0.14; Copyright (C) 2009 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.


sec  2048R/17DC5B7A 2016-09-02 arvind (arvind gpg test) <arvind@gmail.com>

Delete this key from the keyring? (y/N) y
This is a secret key! - really delete? (y/N) y
[oracle@Linux03 ~]$ gpg --list-keys
/home/oracle/.gnupg/pubring.gpg
-------------------------------
pub   2048R/17DC5B7A 2016-09-02
uid                  arvind (arvind gpg test) <arvind@gmail.com>
sub   2048R/5C9DA3C6 2016-09-02

[oracle@Linux03 ~]$ gpg --delete-keys arvind
gpg (GnuPG) 2.0.14; Copyright (C) 2009 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.


pub  2048R/17DC5B7A 2016-09-02 arvind (arvind gpg test) <arvind@gmail.com>

Delete this key from the keyring? (y/N) y
[oracle@Linux03 ~]$ gpg --list-keys
[oracle@Linux03 ~]$