Hello @soniya patil,
Go on the field on incident of which you want to change the label right click
Go to configure label,
Edit the field as per your requirement.
Or else if you want to change the type or make the label as mandatory or read only you can click on configure dictionary and make the required changes
If my inputs have helped with your question, please mark my answer as accepted solution, and give a thumb up.
Thanks,
Priyanka
