Hi @nitishpala - Can you please follow the below steps.
Step -1 : At data set level, add a calculated field and paste now() for the value. See the screen shots below.
Step -2: At Analysis level, Add insight, select the date field in the dimension, edit the narrative and put t your narrative. and save it. Edit the title and sub-title. See the screenshot.
hope this is what you are looking for.
Regards - Sanjeeb