Hi @Amar Deep Singh
I found a link for you with a similar question, do you want the way this issue is displayed? Maybe you can use it as a reference: https://learn.microsoft.com/en-us/answers/questions/267904/ssrs-repeating-column-header-appends-word-continue.
If the answer is helpful, please click
Accept Answer and
Up-Vote for the same. If you have any questions, please feel free to let me know.