JSFiddle - React, Tailwind, and code Playground
HTML
<form id="first_pge" class="first_pge" action="second.page">
<input type="radio" name="radio" id="ug"/>UG
<input type="radio" name="radio" id="pg"/>PG
<input type="radio" name="radio" id="cu"/>CU
<input type="button" value="submit" id="btn_sub"/>
</form>