Kanharam, Biharilal, Shivram, Ghasiram, and Sohanlal were killed in the accident, said Darjaram, SHO of Ladnu police station.
The three injured were rushed to SMS hospital in Jaipur and their condition is stated to be critical, the SHO said.
The ill-fated SUV was on its way from Deedwana to Ladnu when it collided with the tractor-trolley this afternoon.