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I am not Xamarin Expert but as I understand you need to fetch data continuously(by taking 10 Data item at a time using paging) using your web service and Xamarin.Form, so here are few links which may help you

1. https://blog.statusnotquo.com/2015/03/19/xamarin-forms-implementing-infinite-scroll-on-a-listview/ (Will help understand how to load data in you Xamarin.Form using Web service, Infinitely like facebook)
2. http://www.codenutz.com/lac09-xamarin-forms-infinite-scrolling-listview/

Now the part applying of like's and comment, check this below link, which is fetching data from Instagram, 

http://www.c-sharpcorner.com/article/xamarin-forms-create-instagram-application/

for you instead of fetching data about likes/comments from Instagram  fetch it from your database using C# web service

The last part, to save data(Comments/Like) in database you can check this link for it

1. https://msdn.microsoft.com/en-us/magazine/mt736454.aspx
2. https://code.tutsplus.com/tutorials/an-introduction-to-xamarinforms-and-sqlite--cms-23020

With the help of above links, you can first try to get data infinitely in your Xamarin.Form using web service, then fetch Like/comments as in the Instagram example, after that try to save it in the database with the help of the last 2 links

let me know by commenting on answer, if this helps, thanks

Thank you for the help. 

Reguarding the saving comments and likes. I am not using a Sqlite DB. i would like to know how to save those comments to a question.