Rediff.com India — Rediffmail.com account has been hacked

My rediff account is hacked and the hacker has changed all the information and security question.

my email id is [protected]@rediffmail.com. I created this email account years ago and have been using it till it got hacked,
I've tried forget password option to reset it, but to my shocking the Alternative email id and contact number has been changed.

I can't access my account in the need of the hour

i request you to contact me on my alternate email id - [protected]@gmail.com and phone number [protected] to verify my claim and provide me access to my Rediffmail account

Please duly resolve my issue as soon as possible.

Thank you
Imran Ullah