The incident occurred on the Ratangarh-Sardarshahar road in the district when the car coming from Ajmer collided head on with the truck, police said, adding that another person was injured.
The victims, including a two year-old baby and a woman, were on their way to Srinagar after a visit to the Khwaja Moinuddin Chisti Dargah in Ajmer, SHO (Ratangarh) Amir Hassan said.