Dictionary
Words, grammatical forms and meanings linked to the ontology.
Anglo-Indian English en · NOUN
Meanings
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(uncountable) The variety of English used in South Asia during the colonial era, having as a feature numerous borrowings from Hindustani and other local languages.
To suggest that the term could have come from Anglo-Indian English into British thieves' cant and Chinese Pidgin English while also becoming widely dispersed into British dialect use would be to beg the question.
2018, James Lambert, “Anglo-Indian slang in dictionaries on historical principles”, in World Englishes, volume 37, page 255: