Ssc Chsl — Regarding not able to login with old registration id

Address:	delhi
Website:	ssc.nic.in

I want to delete my old ssc registration because i forget my
Password my mobile number and
Email id changed so i cannot be able to login my old registration account
I want to make new registration and i
Want to apply so sir i want to permanently delete my old registration

Thank you
Email id :[protected]@gmail.com
Old register number:[protected]
Mobile number [protected]