Hi there @vimaljroy ,
Welcome to the Community.
Unfortunately we don't support post-purchase surveys natively, but do work with a number of partners that do have this functionality that integrate directly with Klaviyo:
All of these partners support some survey capability, but you'll have to check out their sites & documentation to see which ones support post-purchase surveys in particular. Unfortunately I don't have enough experience with any of them to recommend one.
You can view a list of all platforms we integrate with here:
https://help.klaviyo.com/hc/en-us/articles/115005254888-Popup-List-Growth-Social-and-Other-Integrations
I also recommend checking out our article on How to Create a Product Review Flow
I hope this is helpful and points you in the right direction.