The incident took place this morning when the Mandsaur-bound bus from Bhanpura here, rammed into the truck coming from opposite direction, Garoth police station assistant sub-inspector Chandrapal Singh Tomar said.
The injured included seven women, three minors and 23 men, the officer said, adding that all of them were referred to a hospital for treatment.
Tomar said the truck driver fled the spot after the mishap.
Police have impounded the goods carrier and is further probing into the incident.