title: how to revert TILL specific commit in git
body: <blockquote>
    <p>i want to revert <strong>TILL</strong> <strong>specific</strong> commit in <strong>git</strong></p>
  </blockquote>
  
  <p>i have done 3 commits in git</p>
  
  <ul>
  <li>1st commit  > 1:am</li>
  <li>2nd commit  > 2:am</li>
  <li>3rd commit  > 3:am</li>
  </ul>
  
  <p>now i want to <strong>revert</strong> directly to this <strong>specific</strong> 1st commit !</p>