title: Removing duplicates with ignoring case sensitive and adding the next column values with the first one in pandas dataframe in python
body: <p>I have a df,</p>
  
  <pre><code>Name    Count
  Ram     1
  ram     2
  raM     1
  Arjun   3
  arjun   4
  </code></pre>
  
  <p>My desired output df,</p>
  
  <pre><code>Name    Count
  Ram     4
  Arjun   7
  </code></pre>
  
  <p>I tried groupby but I cannot achieve the desired output, please help</p>