Hi Santhosh,
Looking at the screenshot shared by you, you need to use a stacked bar chart instead of a group bar chart in the iChart template.
Your xml structure should be as below and rest of the configurations you can do as per your requirement and as suggested by Rutika.
| Shift Id | Downtime 1 | Downtime 2 | Downtime n |
| 123 | |||
| 234 | |||
| 345 |
Hope this helps!!
Thanks & Regards,
Anuj