Ravikant was killed and Ashish and Shivakant were rushed to a hospital from where they were referred to a trauma centre in Lucknow, police said, adding, the three belong to Pure Lala Gurguj in Rae Bareli district.
The accident took place near village Mubarakpur on Rae Bareli-Faizabad road under Jagdishpur Police Station in the district.
The truck was on its way to Rae Bareli when the car rammed into it from its backside, police said.