RTE is stipping off the <form> tag in raw html.

Dera Members,

I have authored one row html in a dialog which is having <form> tag, but when we submit it, RTE actually striping off the form tag. like 

it converts 

<form method=“POST” action=“https://abc.com”>
                <input type =“hidden” name = “name” value = “xyz===="/>
    <input type=“submit” value=“Click here” />
</form>

to 

<input type="hidden" name="name" value="xyz===">

<input type="submit" value="Click here ">

I don know what can be solution of it, if any one is having any idea, please respond.

Thanks

Umesh Thakur