@Sweta1012: Hello Sweta,

After rating an article there will be one popup which says "Thank you for the feedback. Please provide additional details. "

This popup will not come when your visit any article by clicking on VIEW ARTICLE. It will only come when you visit any article through KNOWLEDGE SERVICE PORTAL. Please follow below steps and you will get the task.

• Open the Knowledge Service Portal (kb) not the standard Service Portal (sp), eg: https://<instance-name>.service-now.com/kb
• Search and open a knowledge article
• Scroll to the bottom of the page to see 'Rate this article', click on 2 stars.
• A popup, Thank you for the feedback, should appear.
  
  • Pick a reason and add your comments, then click Submit.

After following above steps cross check your knowledge feedback task table. You will find your task

FYI : Before following the above steps please activate below plugins and set the values for below properties

Plugins :

• com.snc.knowledge_advanced
• com.snc.knowledge_serviceportal

Properties :

glide.knowman.feedback.enable_actionable_feedback_for_helpful

glide.knowman.feedback.enable_actionable_feedback_for_rating   

                    Thanks 🙂