Nudge message need to be triggered After 10 mins of no response from user
Hello @sandeep.yepuri 
,
Welcome to Kore Community 
We have Proactive Notifications feature which can be leveraged for the requirement. For details check out the following document:
https://developer.kore.ai/docs/bots/api-guide/proactive-notifications-api/
Hope this helps!! Thank you for stopping by!!