The collision took place between the bus and the dumper laden with heavy stones on the Udaipur-Banswara state highway, they added.
The dumper overturned and the driver and his helper fled fled from the spot, police said.
The deceased was identified as Pratigya. The injured were referred to Udaipur after primary treatment at a local hospital in Banswara, they said.
Meanwhile, angry villagers blocked the highway claiming accidents were commonplace, officials said.
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