Rediff.com India — Rediffmail ID is hacked and the linked security email & mobile number is changed,

My email id :- [protected]@rediffmail.com is hacked and the password is changed. Also the linked email & mobile number is also changed.
I need the access on urgent basis as my linked FB account is also hacked and wrong information is updated on it.

Need your help on urgent basis.
My alternate email id is [protected]@gmail.com

I need urgent help as all my linked account on other platform is also hacked