not able to find RATE MY APP

hi

i am not able to find RATE MY APP component of NOKIA.. Every time i search in the Nuget package manager, is says " NO ITEMS FOUND" . But before some days i successfully had integrate it, and now i am not even finding it.

I am using VS 2013 Express and trying to integrate with a Windows Phone 8 app.

Thank YOU

Anubhav Routray