```
df = 

Name    Age City
Jack    34  Sydney
Riti    30  Delhi
Aadi    16  New York
Riti    30  Delhi
Riti    30  Delhi
Riti    30  Mumbai
Aadi    40  London
Sachin  30  Delhi

```

```
df[df.duplicated(keep='last')]

```

The above code gives the list of duplicated. But what I need is if the `df` contains atleast 1 duplicate, then it should return `The df contains duplicate rows`.