Green’s Dictionary of Slang

tumasha n.

(Anglo-Ind.) fun.

[Ind]F.J. Bellew ‘Memoirs of a Griffin’ in Asiatic Jrnl & Mthly Register May 53: Station dull - no tumasha (fun), as in the old times, when we were first here. The other day, however, old Dickdar, our brigadier, gave a burra khanna (dinner).