I thought these articles were interesting. They may also be of interest to the Wikipedia Zero folks. It would be enlightening to hear comments from Wikimedians in India about these services, particularly about these services' current and potential usefulness for Wikimedia readers and contributors.

http://www.nytimes.com/2015/10/26/technology/facebook-meets-skepticism-in-bi...

http://wwe.nytimes.com/blogs/bits/2015/10/25/facebook-strives-to-bring-cheap...

Regards, Pine