title: find the index of a string ignoring cases
body: <p>I have a string that I need to find index in a list ignoring cases.</p>
  
  <pre><code>MG
  ['ADMISSION' ,'Colace','100','mg', 'b.i.d.' , 'insulin','Lente','12']
  </code></pre>
  
  <p>I want to find the index of MG in the following line as a list.</p>