Form fields getting Accessible

form.html

<form>
  <fieldset>
    <legend>Form header</legend>

    <! this above fieldset legend should have the text explaining the forms purpose > 

    <label for="id_of_related_input_field">Text corresponding to input field</label>
    <input id="id_of_related_input_field" type="..." />

    <! have label close to input, have for(label) and id(input) same for identification by screen reader, prefer this way over nesting input under label >

    <fieldset>
      <legend>Radio button Question Text</legend>

      <label for="radio_select_1">
      <input id="radio_select_1" type='radio' value='...'>

    </fieldset>

    <! nest radio buttons, drop boxes and check boxes under fieldset and have legend explaining the inputs question >

  </fieldset>
</form>