I have added my records in the DNS Zone as per quided by zoho. Still there is Mail Bounce error as : This problem started as I moved my server from godaddy to my VPS.

550 Please turn on SMTP Authentication in your mail client.  mail-pf0-f193.google.com  [209.85.192.193]:34861 is not permitted to relay through this server without authentication.

Final-Recipient: rfc822;  enquire@hindustaneducon.com
Action: failed
Status: 5.0.0
Remote-MTA: dns;  hindustaneducon.com . (173.208.220.226, the server for the
 domain  hindustaneducon.com .)
Diagnostic-Code: smtp; 550-Please turn on SMTP Authentication in your mail client.
  550-mail-pf0-f193.google.com  [209.85.192.193]:34861 is not permitted to relay
 550 through this server without authentication.
Last-Attempt-Date: Thu, 06 Jul 2017 08:46:17 -0700 (PDT)