Definition of "pucka"

Mrs. S[mart].— […] Are you not aware, Fanny, that he [Lieut. Marsden] is only Acting-Assistant Sub-Deputy Inspector? Do you imagine that I should give my child to a man whose appointment was not pucka? / F[anny].—But, Mamma, is Mr. Cholmondeley's appointment pucka? / Mrs. S.—How can you talk such nonsense, child? […] Mr. Cholmondeley is a landed gentleman, and draws twelve thousand rupees a month from his estates in Derbyshire, besides holding Government paper to a large amount.

1863, H. Broughton [pseudonym; Sir George Trevelyan, 2nd Baronet], The Dawk Bungalow; or, “Is His Appointment Pucka?” [...] Acted at Belvidere, Dec. 21, 1863, Calcutta: Published by Messrs. Thacker, Spink, and Co., act I, page 10