The wall collapsed while the labourers were working inside the mill at Enumamula Market outskirts, Inthejar Ganj Police Circle Inspector Ravinder Kumar said.
The deceased were identified as K.Swarupa (35) and M Swarupa (44). The injured were admitted to a nearby hospital, he added.
Warangal City Police Commissioner Sudheer Kumar and MLA Surekha visited the spot.
A case has been registered in this regard and a probe was on, said the officer.
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