Do engineers in Google India work in pairs?

I have a theory that Google's engineers in India mostly work in pairs. You know, like how soldiers or cops in certain units usually work in pairs. I think each Indian Google engineer is paired with a colleague and together they work on tasks/assignments.

Why do I suspect this? I have been following the Official Google Blog for a long time now. I have noticed that posts by Indian engineers are usually attributed to two individuals. I have very rarely seen non-Indian Googlers authoring blog posts in pairs. Non-Indian Googlers almost always write blog posts alone, as individuals.

As of today, a quick Reader search of the Official Google blog's feed for the word 'India' returns 15 posts, of which 7 posts are made by people with Indian-sounding names. Of these 7 posts, 4 posts are made by pairs of Indians and 3 posts by lone Indians. I realize that this is not the most accurate way to count and analyze the posts. But I could not find an easier way to search (any suggestions?) for:
1. Only posts made by Indians.
2. Only posts made by more than one author.

There do exist posts by Indian Googlers writing alone. But it is just as likely to see an Indian Googler posting along with another Indian colleague. And like I said earlier, it is very rare to see non-Indian Googlers writing blog posts in pairs. So, I suspect that the Indian engineers work on projects in pairs, and then end up writing about those projects on the official blog, also in pairs.

If you work for Google in India (or even in other Google locations) or if you know someone who works for Google India, would you confirm if my suspicion is true? If it is true, then why is it so? Why do only Indian engineers in Google work in pairs and not others?

Pssst... The chances of hearing from someone at Google in response to speculative posts about internal stuff is none to zero. So, non-Googlers too feel free to speculate in the comments! :-)