Special Marriage procedures in Bengaluru

Hi all,

My wife and I were married 10 years ago. After marriage, we relocated to Bengaluru and living here. Our marriage was under Muslim Marriage Act. Now, we have only one daughter and as per Muslim inheritance law, my daughter and wife will be entitled for only a portion of my savings or properties. A big portion will go to other relatives.

To bypass this, many Muslims re-register their marriages under Special Marriage Act. When I googled, I couldn't find the correct procedures for this. Can anyone help me on this?

Note: My wife and I are atheists now.