No, it includes those from India as well - a significant proportion, in fact.
Historically, the US Census had put ‘East Indian’ as ‘Caucasian’ until it was changed to ‘Asian Indian’ in more recent times (70s?). So, many studies and surveys that categorise ‘Asian’ also included Subcontinental Indians.
Very true. But I was speaking only to common usage in Britain. In Britain common usage is to call Syria to northern India Asian and anything east of that as East Asian.
It’s interesting to know that in America we once classified Indians as Caucasians. I bet that shocked them.