I have a dataframe which looks like this.

```
 Name  info.1 info.2 
  ab      a      1
  123     a      1
  de      c      4
  456     c      4
  fg      d      5
  789     d      5 

```

The two rows that need to be combined are identical aside from the name column and are together in the dataframe. I want the new dataframe to look like this:

```
 Name ID  info.1 info.2 
  ab  123    a      1
  de  456    c      4
  fg  789    d      5

```

I have no clue how to do this and google search hasn't been helpful so far