I found two competing narratives on the Asian minorities vote in the Brexit referendum. The simple overall picture:
Two thirds (67%) of those describing themselves as Asian voted to remain
And another which suggests a different pattern in areas with a "double digit" proportion of Asian minorities:
Outside London, nearly every constituency with a double-digit South Asian population voted Leave. Luton has a 25 percent Asian population; Leave won there with a 19 percent majority. Places like Pendle, Oldham, Sandwell, Walsall and Wolverhampton also have high South Asian populations and voted Leave with large majorities. The only exception was Leicester, with its 30 percent Asian population – narrowly a Remain town, with a 2 percent majority.
But knowing how the whole constituency voted in an area (even one that contains a "double digit" minority) doesn't exactly inform us how the minority in that area voted, i.e. it's still possible that (e.g.) the whites more overwhelmingly voted for Brexit in these areas with a double-digit Asian minority.
So, question: how did the Asian minority voters vote (in the Brexit referendum) in these areas with a double-digit Asian minority?