Green’s Dictionary of Slang

(Anglo-Ind.) a child.

c.1850		Duncombe New and Improved Flash Dict.
1864, 1867, 1870		Hotten Sl. Dict. 90: Butcha a Hindoo word in use among Englishmen for the young of any animal. In England we ask after the children; in India the health of the butchas is tenderly inquired for.
1891		Civil & Milit. Gaz. (Lahore) 5 Jan. 8/1: Winner of a ‘Menagerie Race [...] was a goat driven by a cunning boy, who had the goat’s ‘butcha’ tied near the winning post, to which, of course, the goat went at full speed.