British East India stay in power, communal relations are less strained and the Mughal dynasty continues. So basically a continuation of 18th century British India, in which there was a lot more syncretism of cultures rather then the complete British hegemony. (In terms of culture).
Also the Anglo - Indian population most likely continues to grow as as the 1857 rebellion lead to a migration of white settlers to administrate the subcontinent, making interracial marriages less necessary and eventually becoming a taboo.