Add www on subdomain

is it possible to add www on subdomain? is yes Please suggest me the steps for that.

Do you mean like this?

Technically, yes. Just add “www.mysubdomain” in the subdomain field your DNS record for the domain.

Keep in mind that this isn’t really a standard practice since “www” on its own is already a subdomain.

Thanks Force.

is it possible to achieve the solution through .htaccess?

You can handle it like any other address, so long as it is forwarded from your DNS server.