Language used by rajah in Didwana (5)

I believe the answer is:

hindi

'language' is the definition.
(Hindi is an example)

'used by rajah in didwana' is the wordplay.
'used by' indicates a hidden word.
'HINDI' is hidden in the letters of 'rajah in didwana'.

(Other definitions for hindi that I've seen before include "An official language of India" , "Ind. Language" , "Asian language" , "Indic language" , "Language derived from Sanskrit" .)

I've seen this clue in The Times.

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