Indian's are the world's biggest google pets: From the google trends it is evident that Indian googlers are dominating in their way of searching.
google corporation has their search engines in plenty of various languages, apart from that google.com is the most common browser url for all,
it is a default browser url for google and there is no more seperate url for americans like google.us. But google.com an international url as far as i seen in google trend from india
in a way that showing indians are using more.. so if you want to know your actual rank in US u need to switch your browser into a proxy which has US ip address.