The bus was on its way from village Chinta to Bhadarwah in Doda district, when the driver lost control on Bhadarwah-Jai road, officials said.
Police rescued all the passengers with the help of locals.
The injured were admitted to sub-district hospital in Bhaderwah and two critically injured were shifted to GMC in Jammu, they said, adding a case has been registered in this regard.